CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, three members of the STS-88 space shuttle crew speak to spaceport employees during a celebration commemorating the 15th anniversary of the start of assembly of the International Space Station. On stage, from the left, are mission specialist Nancy Currie and Jerry Ross, along with and mission commander Bob Cabana, who is Kennedy's director. The Russian Space Agency's Functional Cargo Block, named "Zarya," was launched from the Baikonur Cosmodrome in Kazakhstan on Nov. 20, 1998. Two weeks later, on Dec. 4, 1998, the space shuttle Endeavour lifted off from Kennedy on STS-88 with node 1, called "Unity." In addition to Cabana, Curie and Ross, the crew also included pilot Rick Sturckow, along with mission specialists Jim Newman and Sergei Krikalev, a Russian cosmonaut. For more information, visit: http://www.nasa.gov/mission_pages/station/main/index.html Photo credit: NASA/Jim Grossman

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the center's director, Bob Cabana, speaks during an employee celebration commemorating the 15th anniversary of the start of assembly of the International Space Station. Cabana served as commander of STS-88, the space shuttle mission that launched the first American-built element of the space station, beginning the effort to construct the orbiting complex. Also participating in the ceremony were STS-88 mission specialists Nancy Currie and Jerry Ross. The Russian Space Agency's Functional Cargo Block, named "Zarya," was launched from the Baikonur Cosmodrome in Kazakhstan on Nov. 20, 1998. Two weeks later, on Dec. 4, 1998, the space shuttle Endeavour lifted off from Kennedy on STS-88 with node 1, called "Unity." In addition to Cabana, Curie and Ross, the crew also included pilot Rick Sturckow, along with mission specialists Jim Newman and Sergei Krikalev, a Russian cosmonaut. For more information, visit: http://www.nasa.gov/mission_pages/station/main/index.html Photo credit: NASA/Jim Grossman

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the center's director, Bob Cabana, cuts a 15th anniversary cake during an employee celebration commemorating the start of assembly of the International Space Station. Cabana served as commander of STS-88, the space shuttle mission that launched the first American-built element of the space station, beginning the effort to construct the orbiting complex. Also participating in the ceremony were STS-88 mission specialists Nancy Currie and Jerry Ross. The Russian Space Agency's Functional Cargo Block, named "Zarya," was launched from the Baikonur Cosmodrome in Kazakhstan on Nov. 20, 1998. Two weeks later, on Dec. 4, 1998, the space shuttle Endeavour lifted off from Kennedy on STS-88 with node 1, called "Unity." In addition to Cabana, Curie and Ross, the crew also included pilot Rick Sturckow, along with mission specialists Jim Newman and Sergei Krikalev, a Russian cosmonaut. For more information, visit: http://www.nasa.gov/mission_pages/station/main/index.html Photo credit: NASA/Jim Grossman

CAPE CANAVERAL, Fla. – At NASA's Kennedy Space Center in Florida, the center's director, Bob Cabana, right, speaks during an employee celebration commemorating the 15th anniversary of the start of assembly of the International Space Station. Cabana served as commander of STS-88, the space shuttle mission that launched the first American-built element of the space station, beginning the effort to construct the orbiting complex. Participating in the presentation, from the left, are STS-88 crew members Nancy Currie, Jerry Ross and Cabana. The Russian Space Agency's Functional Cargo Block, named "Zarya," was launched from the Baikonur Cosmodrome in Kazakhstan on Nov. 20, 1998. Two weeks later, on Dec. 4, 1998, the space shuttle Endeavour lifted off from Kennedy on STS-88 with node 1, called "Unity." In addition to Cabana, Curie and Ross, the crew also included pilot Rick Sturckow, along with mission specialists Jim Newman and Sergei Krikalev, a Russian cosmonaut. For more information, visit: http://www.nasa.gov/mission_pages/station/main/index.html Photo credit: NASA/Jim Grossman

A large group of Astronauts from the Shuttle and Apollo projects wave to crowds as the Space shuttle Atlantis makes its trip to its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Space shuttle Atlantis rolls away from the Vehicle Assembly Building as it begins its trip to its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Space shuttle Atlantis is seen as it rolls out of the Vehicle Assembly Building to start its trip to its new home at the Kennedy Space Center Visitor Complex, Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Space shuttle Atlantis is seen during its trip to its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Space shuttle Atlantis is seen during its trip to its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Charles Bolden speaks with NASA Social attendees during the move of space shuttle Atlantis, Friday, Nov. 2, 2012, at Kennedy Space Center in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Space shuttle Atlantis is seen during its trip to its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Kennedy Space Center Director Robert Cabana, left, and NASA Administrator Charles Bolden talk about space shuttle Atlantis, Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Kennedy Space Center Director Robert Cabana takes a picture of space shuttle Atlantis, Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Cheryl Hurst, Director of Education and External Relations at Kennedy Space Center, speaks at the signing ceremony for space shuttle Atlantis, background, Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Charles Bolden speaks with NASA Social attendees during the move of space shuttle Atlantis, Friday, Nov. 2, 2012, at Kennedy Space Center in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Space shuttle Atlantis is seen as it rolls down Kennedy Parkway on its way to its new home at the Kennedy Space Center Visitor Complex, Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Space shuttle Atlantis is seen during its trip to its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Space shuttle Atlantis is seen during its trip to its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Space shuttle Atlantis is seen near the Orbiter Processing Facility during its trip to its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Onlookers wearing commemorative t-shirts watch as space shuttle Atlantis rolls to ts new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

An onlooker holds up a mobile device to record space shuttle Atlantis as it rolls to ts new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Onlookers watch as space shuttle Atlantis rolls to its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

The Titusville High School band parades ahead of space shuttle Atlantis as it makes its way to its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Space shuttle Atlantis, (OV-104), is seen as it begins its trip to its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Kennedy Space Center Director Robert Cabana speaks at the signing ceremony for space shuttle Atlantis, background, Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

A small color guard carry flags during the procession for space shuttle Atlantis as it makes its way to its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Space shuttle Atlantis, (OV-104), is seen as it begins its trip to its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Workers carry a banner full of signatures while following behind space shuttle Atlantis as it begins its trek to its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Space shuttle Atlantis is seen during its trip to its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Searra Weeks, from Kennedy Middle School, sings the National Anthem, at the signing ceremony for space shuttle Atlantis, background, Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

William Moore, COO, KSC VC, DNC Parks & Recreation, speaks at the signing ceremony, for space shuttle Atlantis, background, Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Military personnel salute as Searra Weeks, from Kennedy Middle School, sings the National Anthem, at the signing ceremony for space shuttle Atlantis, background, Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

Karol Bobko, who commanded STS-51, the first flight of space shuttle Atlantis, background, speaks at the signing ceremony, Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Charles Bolden, left, and Kennedy Space Center director Robert Cabana pose for a photo as space shuttle Atlantis rolls toward its new home at the Kennedy Space Center Visitor Complex, early Friday, Nov. 2, 2012, in Cape Canaveral, Fla. The spacecraft traveled 125,935,769 miles during 33 spaceflights, including 12 missions to the International Space Station. Its final flight, STS-135, closed out the Space Shuttle Program era with a landing on July 21, 2011. Photo Credit: (NASA/Bill Ingalls)

STS98-E-5041 (9 February 2001) --- One of a series of three digital still camera's views of the station's Unity node and the docking mechanism just prior to link up between the station and the Space Shuttle Atlantis. Sailing at 17,000 miles per hour 200 miles above the Pacific Ocean, astronaut Kenneth D. Cockrell, STS-98 mission commander, flawlessly pulled the shuttle alongside the International Space Station and docked, in position to add the new Destiny laboratory to the complex on the following day and begin a new era in space research. Atlantis went on to dock with the station on schedule at 10:51 a.m. (CST), February 9, and the station and shuttle crews opened hatches between the spacecraft at 1:03 p.m.

STS98-E-5042 (9 February 2001) --- One of a series of three digital still camera's views of the station's Unity node and the docking mechanism just prior to link up between the station and the Space Shuttle Atlantis. Sailing at 17,000 miles per hour 200 miles above the Pacific Ocean, astronaut Kenneth D. Cockrell, STS-98 mission commander, went on to flawlessly pull the shuttle alongside the International Space Station and dock it, in position to add the new Destiny laboratory to the complex on the following day and begin a new era in space research. Atlantis docked with the station on schedule at 10:51 a.m. (CST), February 9, and the station and shuttle crews opened hatches between the spacecraft at 1:03 p.m.

STS98-E-5040 (9 February 2001) --- One of a series of three digital still camera's views of the station's Unity node and the docking mechanism just prior to link up between the station and the Space Shuttle Atlantis. Sailing at 17,000 miles per hour 200 miles above the Pacific Ocean, astronaut Kenneth D. Cockrell, STS-98 mission commander, flawlessly pulled the shuttle alongside the International Space Station and docked, in position to add the new Destiny laboratory to the complex on the following day and begin a new era in space research. Atlantis went on to dock with the station on schedule at 10:51 a.m. (CST), February 9, and the station and shuttle crews opened hatches between the spacecraft at 1:03 p.m.

STS088-S-001 (September 1998) --- Designed by the crew members, this STS-88 patch commemorates the first assembly flight to carry United States-built hardware for constructing the International Space Station (ISS). This flight's primary task is to assemble the cornerstone of the space station: the Node with the Functional Cargo Block (FGB). The rising sun symbolizes the dawning of a new era of international cooperation in space and the beginning of a new program: the International Space Station. The Earth scene outlines the countries of the Station Partners: the United States, Russia, those of the European Space Agency (ESA), Japan, and Canada. Along with the Pressurized Mating Adapters (PMA) and the Functional Cargo Block, the Node is shown in the final mated configuration while berthed to the space shuttle during the STS-88/2A mission. The Big Dipper Constellation points the way to the North Star, a guiding light for pioneers and explorers for generations. In the words of the crew, "These stars symbolize the efforts of everyone, including all the countries involved in the design and construction of the International Space Station, guiding us into the future." The NASA insignia design for space shuttle flights is reserved for use by the astronauts and for other official use as the NASA Administrator may authorize. Public availability has been approved only in the forms of illustrations by the various news media. When and if there is any change in this policy, which is not anticipated, the change will be publicly announced. Photo credit: NASA

CAPE CANAVERAL, Fla. – As seen on Google Maps, space shuttle Endeavour goes through transition and retirement processing in high bay 4 of the Vehicle Assembly Building at NASA's Kennedy Space Center. The spacecraft completed 25 missions beginning with its first flight, STS-49, in May 1992, and ending with STS-134 in May 2011. It helped construct the International Space Station in orbit and travelled more than 122 million miles in orbit during its career. The reaction control system pods in the shuttle's nose and aft section were removed for processing before Endeavour was put on public display at the California Science Center in Los Angeles. Google precisely mapped the space center and some of its historical facilities for the company's map page. The work allows Internet users to see inside buildings at Kennedy as they were used during the space shuttle era. Photo credit: Google/Wendy Wang

The STS-76 crew patch depicts the Space Shuttle Atlantis and Russia's Mir Space Station as the space ships prepare for a rendezvous and docking. The Spirit of 76, an era of new beginnings, is represented by the Space Shuttle rising through the circle of 13 stars in the Betsy Ross flag. STS-76 begins a new period of international cooperation in space exploration with the first Shuttle transport of a United States astronaut, Shannon W. Lucid, to the Mir Space Station for extended joint space research. Frontiers for future exploration are represented by stars and the planets. The three gold trails and the ring of stars in union form the astronaut logo. Two suited extravehicular activity (EVA) crew members in the outer ring represent the first EVA during Shuttle-Mir docked operations. The EVA objectives were to install science experiments on the Mir exterior and to develop procedures for future EVA's on the International Space Station. The surnames of the crew members encircle the patch: Kevin P. Chilton, mission commander; Richard A. Searfoss, pilot; Ronald M. Sega, Michael R. ( Rich) Clifford, Linda M. Godwin and Lucid, all mission specialists. This patch was designed by Brandon Clifford, age 12, and the crew members of STS-76.

JOHNSON SPACE CENTER, Houston -- STS122-S-001A -- The STS-122 patch depicts the continuation of the voyages of the early explorers to today's frontier, space. The ship denotes the travels of the early expeditions from the east to the west. The space shuttle shows the continuation of that journey along the orbital path from west to east. A little more than 500 years after Columbus sailed to the new world, the STS-122 crew will bring the European laboratory module "Columbus" to the International Space Station to usher in a new era of scientific discovery. The NASA insignia design for space shuttle flights is reserved for use by the astronauts and for other official use as the NASA Administrator may authorize. Public availability has been approved only in the form of illustrations by the various news media. When and if there is any change in this policy, it will be publicly announced.

STS122-S-001A (April 2007) --- The STS-122 patch depicts the continuation of the voyages of the early explorers to today's frontier, space. The ship denotes the travels of the early expeditions from the east to the west. The space shuttle shows the continuation of that journey along the orbital path from west to east. A little more than 500 years after Columbus sailed to the new world, the STS-122 crew will bring the European laboratory module "Columbus" to the International Space Station to usher in a new era of scientific discovery. The NASA insignia design for space shuttle flights is reserved for use by the astronauts and for other official use as the NASA Administrator may authorize. Public availability has been approved only in the forms of illustrations by the various news media. When and if there is any change in this policy, which is not anticipated, the change will be publicly announced. Photo credit: NASA

Designed by the STS-88 crew members, this patch commemorates the first assembly flight to carry United States-built hardware for constructing the International Space Station (ISS). This flight's primary task was to assemble the cornerstone of the Space Station: the Node with the Functional Cargo Block (FGB). The rising sun symbolizes the dawning of a new era of international cooperation in space and the beginning of a new program: the International Space Station. The Earth scene outlines the countries of the Station Partners: the United States, Russia, those of the European Space Agency (ESA), Japan, and Canada. Along with the Pressurized Mating Adapters (PMA) and the Functional Cargo Block, the Node is shown in the final mated configuration while berthed to the Space Shuttle during the STS-88/2A mission. The Big Dipper Constellation points the way to the North Star, a guiding light for pioneers and explorers for generations. In the words of the crew, These stars symbolize the efforts of everyone, including all the countries involved in the design and construction of the International Space Station, guiding us into the future.

Joel Montalbano, NASA’s International Space Station Deputy Program Manager, watches the docking of SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard to the International Space Station, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31.. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

Janet Karika, NASA Chief of Staff, left, Ken Bowersox, acting Associate Administrator for NASA's Human Exploration and Operations Mission Directorate, and Joel Montalbano, NASA’s International Space Station Deputy Program Manager, watch the docking of SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard to the International Space Station, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31.. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

Joel Montalbano, NASA’s International Space Station Deputy Program Manager, watches the docking of SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard to the International Space Station, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31.. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

A view inside Node 2 of the International Space Station showing the hatch leading to PMA 2 is seen on a monitor inside firing room four following the docking of SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard to the International Space Station, Sunday, May 31, 2020, in the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31.. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

JOHNSON SPACE CENTER, HOUSTON, TEXAS -- EXPEDITION THREE INSIGNIA -- The Expedition Three crew members -- astronaut Frank L. Culbertson Jr., commander, and cosmonauts Vladimir N. Dezhurov and Mikhail Tyurin -- had the following to say about the insignia for their scheduled mission aboard the International Space Station (ISS): "The book of space history turns from the chapter written onboard the Russian Mir Station and the U.S. Space Shuttle to the next new chapter, one that will be written on the blank pages of the future by space explorers working for the benefit of the entire world. The space walker signifies the human element of this endeavor. The star representing the members of the third expedition, and the entire multi-national Space Station building team, streaks into the dawning era of cooperative space exploration, represented by the image of the International Space Station as it nears completion." The insignia design for ISS flights is reserved for use by the astronauts and cosmonauts and for other official use as the NASA Administrator and NASA's international partners may authorize. Public availability has been approved only in the form of illustrations by the various news media. When and if there is any change in this policy, which we do not anticipate, it will be publicly announced

S89-E-5171 (24 Jan 1998) --- Just seconds after hatch opening, the Space Shuttle Endeavour and Russian Mir Space Station commanders are reunited. At left is cosmonaut Anatoliy Y. Solovyev. Astronaut Terrence W. (Terry) Wilcutt's (right) crew includes astronaut Andrew S.W. Thomas who will remain aboard Mir for several months' research as the final U.S. astronaut cosmonaut guest researcher to do so, as the United States and Russia prepare for the onset of the era of International Space Station (ISS). Solovyev was a member of the STS-71 crew which marked the first of the nine planned NASA-Mir link-ups. The photograph was taken with a 35mm Electronic Still Camera (ESC) at 22:35:59 GMT, January 24, 1998.

ISS003-S-001 (June 2001) --- The Expedition Three crew members--astronaut Frank L. Culbertson, Jr., commander, and cosmonauts Vladimir N. Dezhurov and Mikhail Tyurin, flight engineers--had the following to say about the insignia for their scheduled mission aboard the International Space Station (ISS): “The book of space history turns from the chapter written onboard the Russian Mir Station and the U.S. Space Shuttle to the next new chapter, one that will be written on the blank pages of the future by space explorers working for the benefit of the entire world. The space walker signifies the human element of this endeavor. The star representing the members of the third expedition, and the entire multi-national space station building team, streaks into the dawning era of cooperative space exploration, represented by the image of the International Space Station as it nears completion.” The insignia design for ISS flights is reserved for use by the astronauts and cosmonauts and for other official use as the NASA Administrator and NASA's international partners may authorize. Public availability has been approved only in the form of illustrations by the various news media. When and if there is any change in this policy, which we do not anticipate, it will be publicly announced.

JOHNSON SPACE CENTER, HOUSON, TEXAS -- STS-107 INSIGNIA -- This is the insignia for STS-107, which is a multi-discipline microgravity and Earth science research mission with a multitude of international scientific investigations conducted continuously during the planned 16 days on orbit. The central element of the patch is the microgravity symbol flowing into the rays of the astronaut symbol. The mission inclination is portrayed by the 39-degree angle of the astronaut symbol to the Earth's horizon. The sunrise is representative of the numerous experiments that are the dawn of a new era for continued microgravity research on the International Space Station and beyond. The breadth of science conducted on this mission will have widespread benefits to life on Earth and our continued exploration of space, illustrated by the Earth and stars. The constellation Columba (the dove) was chosen to symbolize peace on Earth and the Space Shuttle Columbia. The seven stars also represent the mission crew members and honor the original astronauts who paved the way to make research in space possible. The Israeli flag is adjacent to the name of the payload specialist who is the first person from that country to fly on the Space Shuttle. The NASA insignia design for Space Shuttle flights is reserved for use by the astronauts and for other official use as the NASA Administrator may authorize. Public availability has been approved only in the form of illustrations by the various news media. When and if there is any change in this policy, which we do not anticipate, it will be publicly announced.

CAPE CANAVERAL, Fla. – Representatives from NASA, Lockheed Martin, Space Florida and the state of Florida participate in a ceremony at NASA's Kennedy Space Center in Florida to mark the completion of renovations on the historic Operations and Checkout Building high bay for use by the Constellation Program. At right, Richard Harris, with Lockheed Martin, describes activities that will take place in the building. Originally built to process space vehicles in the Apollo era, the building will serve as the final assembly facility for the Orion crew exploration vehicle. Orion, America's future human spaceflight vehicle, will be capable of transporting four crew members to the moon and later will support crew transfers to Mars. The Orion spacecraft also will be used to transport crew members to the International Space Station after space shuttles are retired in 2010. The first operational launch of Orion atop an Ares I rocket is planned for 2015. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – Representatives from NASA, Lockheed Martin, Space Florida and the state of Florida participate in a ceremony at NASA's Kennedy Space Center in Florida to mark the completion of renovations on the historic Operations and Checkout Building high bay for use by the Constellation Program. At center, U.S. Rep. Suzanne Kosmas and Lt. Governor Jeff Kottcamp listen to Richard Harris, with Lockheed Martin, describe some of the hardware that will be used in the building. Originally built to process space vehicles in the Apollo era, the building will serve as the final assembly facility for the Orion crew exploration vehicle. Orion, America's future human spaceflight vehicle, will be capable of transporting four crew members to the moon and later will support crew transfers to Mars. The Orion spacecraft also will be used to transport crew members to the International Space Station after space shuttles are retired in 2010. The first operational launch of Orion atop an Ares I rocket is planned for 2015. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – Representatives from NASA, Lockheed Martin, Space Florida and the state of Florida participate in a ceremony at NASA's Kennedy Space Center in Florida to mark the completion of renovations on the historic Operations and Checkout Building high bay for use by the Constellation Program. At left, Richard Harris, with Lockheed Martin, describes activities that will take place in the building. Originally built to process space vehicles in the Apollo era, the building will serve as the final assembly facility for the Orion crew exploration vehicle. Orion, America's future human spaceflight vehicle, will be capable of transporting four crew members to the moon and later will support crew transfers to Mars. The Orion spacecraft also will be used to transport crew members to the International Space Station after space shuttles are retired in 2010. The first operational launch of Orion atop an Ares I rocket is planned for 2015. Photo credit: NASA/Dimitri Gerondidakis

The countdown clock at NASA’s Kennedy Space Center Press Site is seen during sunrise on launch day for NASA’s SpaceX Demo-2 mission, Saturday, May 30, 2020, in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Robert Behnken and Douglas Hurley are scheduled to launch at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

NASA astronauts Robert Behnken, left, and Douglas Hurley speak to members of the media after arriving at the Launch and Landing Facility at NASA’s Kennedy Space Center ahead of SpaceX’s Demo-2 mission, Wednesday, May 20, 2020, in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The flight test will serve as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley are scheduled to launch at 4:33 p.m. EDT on Wednesday, May 27, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Bill Ingalls)

The Vehicle Assembly Building is seen at sunset as preparations continue for the NASA’s SpaceX Demo-2 mission, Monday, May 25, 2020, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Robert Behnken and Douglas Hurley are scheduled to launch at 4:33 p.m. EDT on Wednesday, May 27, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

President Donald Trump departs Air Force One after arriving at NASA’s Kennedy Space Center Launch and Landing Facility ahead of SpaceX’s Demo-2 mission, Saturday, May 30, 2020, in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley are scheduled to launch at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Bill Ingalls)

A SpaceX Falcon 9 rocket with the company's Crew Dragon spacecraft onboard is seen on the launch pad at Launch Complex 39A as preparations continue for the Demo-2 mission, Thursday, May 21, 2020, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The flight test will serve as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley are scheduled to launch at 4:33 p.m. EDT on Wednesday, May 27, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Bill Ingalls)

NASA astronauts Robert Behnken, left, and Douglas Hurley speak to members of the media after arriving at the Launch and Landing Facility at NASA’s Kennedy Space Center ahead of SpaceX’s Demo-2 mission, Wednesday, May 20, 2020, in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The flight test will serve as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley are scheduled to launch at 4:33 p.m. EDT on Wednesday, May 27, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Bill Ingalls)

NASA astronauts Robert Behnken, left, and Douglas Hurley gives a thumbs up after arriving at the Launch and Landing Facility at NASA’s Kennedy Space Center ahead of SpaceX’s Demo-2 mission, Wednesday, May 20, 2020, in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The flight test will serve as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley are scheduled to launch at 4:33 p.m. EDT on Wednesday, May 27, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Bill Ingalls)

NASA astronauts Douglas Hurley, left, and Robert Behnken depart the Launch and Landing Facility and head to crew quarters at NASA’s Kennedy Space Center ahead of SpaceX’s Demo-2 mission, Wednesday, May 20, 2020, in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The flight test will serve as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley are scheduled to launch at 4:33 p.m. EDT on Wednesday, May 27, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Bill Ingalls)

NASA astronauts Robert Behnken, left, and Douglas Hurley speak to members of the media after arriving at the Launch and Landing Facility at NASA’s Kennedy Space Center ahead of SpaceX’s Demo-2 mission, Wednesday, May 20, 2020, in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The flight test will serve as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley are scheduled to launch at 4:33 p.m. EDT on Wednesday, May 27, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Bill Ingalls)

NASA astronauts Robert Behnken, left, and Douglas Hurley speak to members of the media after arriving at the Launch and Landing Facility at NASA’s Kennedy Space Center ahead of SpaceX’s Demo-2 mission, Wednesday, May 20, 2020, in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The flight test will serve as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley are scheduled to launch at 4:33 p.m. EDT on Wednesday, May 27, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Bill Ingalls)

NASA astronauts Robert Behnken, left, and Douglas Hurley wave after speaking to members of the media and arriving at the Launch and Landing Facility at NASA’s Kennedy Space Center ahead of SpaceX’s Demo-2 mission, Wednesday, May 20, 2020, in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The flight test will serve as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley are scheduled to launch at 4:33 p.m. EDT on Wednesday, May 27, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Bill Ingalls)

NASA astronauts Robert Behnken, left, and Douglas Hurley speak to members of the media after arriving at the Launch and Landing Facility at NASA’s Kennedy Space Center ahead of SpaceX’s Demo-2 mission, Wednesday, May 20, 2020, in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The flight test will serve as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley are scheduled to launch at 4:33 p.m. EDT on Wednesday, May 27, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Bill Ingalls)

NASA astronauts Douglas Hurley and Robert Behnken arrive at the Launch and Landing Facility at NASA’s Kennedy Space Center ahead of SpaceX’s Demo-2 mission, Wednesday, May 20, 2020, in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The flight test will serve as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley are scheduled to launch at 4:33 p.m. EDT on Wednesday, May 27, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Bill Ingalls)

NASA astronauts Robert Behnken, left, and Douglas Hurley speak to members of the media after arriving at the Launch and Landing Facility at NASA’s Kennedy Space Center ahead of SpaceX’s Demo-2 mission, Wednesday, May 20, 2020, in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The flight test will serve as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley are scheduled to launch at 4:33 p.m. EDT on Wednesday, May 27, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Bill Ingalls)

NASA astronauts Robert Behnken, left, and Douglas Hurley speak to members of the media after arriving at the Launch and Landing Facility at NASA’s Kennedy Space Center ahead of SpaceX’s Demo-2 mission, Wednesday, May 20, 2020, in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The flight test will serve as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley are scheduled to launch at 4:33 p.m. EDT on Wednesday, May 27, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Bill Ingalls)

The crew access arm is swung into position for the Crew Dragon spacecraft and the SpaceX Falcon 9 rocket at Launch Complex 39A as preparations continue for the Demo-2 mission, Thursday, May 21, 2020, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The flight test will serve as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley are scheduled to launch at 4:33 p.m. EDT on Wednesday, May 27, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Bill Ingalls)

NASA astronauts Robert Behnken, left, and Douglas Hurley speak to members of the media after arriving at the Launch and Landing Facility at NASA’s Kennedy Space Center ahead of SpaceX’s Demo-2 mission, Wednesday, May 20, 2020, in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The flight test will serve as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley are scheduled to launch at 4:33 p.m. EDT on Wednesday, May 27, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Bill Ingalls)

KENNEDY SPACE CENTER, FLA. -- Employees and guests are seated in the Operations and Checkout (O&C) Building high bay for the ceremony commemorating the bay's transition for use by the Constellation Program. Originally built to process space vehicles in the Apollo era, the O&C Building will serve as the final assembly facility for the Orion crew exploration vehicle. Orion, America's human spaceflight vehicle of the future, will be capable of transporting four crewmembers for lunar missions and later will support crew transfers for Mars missions. Each Orion spacecraft also may be used to support up to six crewmembers to the International Space Station after the space shuttle is retired in 2010. Design, development and construction of Orion's components will be performed by Lockheed Martin for NASA at facilities throughout the country. Photo credit: NASA/Kim Shiflett

Kathy Lueders, manager of NASA's Commercial Crew Program, watchs the docking of SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard to the International Space Station, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31.. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

NASA astronauts Robert Behnken and Douglas Hurley are seen with Expedition 53 Commander NASA astronaut Chris Cassidy and cosmonauts Anatoly Ivanishin and Ivan Vagner of Roscosmos onboard the International Space Station after hatches were opened between SpaceX’s Crew Dragon spacecraft the orbiting laboratory, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

Kathy Lueders, manager of NASA's Commercial Crew Program, is seen after the hatches are opened between SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard and the International Space Station, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31.. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

Ken Bowersox, acting Associate Administrator for NASA's Human Exploration and Operations Mission Directorate, monitors the docking of SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard to the International Space Station, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31.. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

Kathy Lueders, manager of NASA's Commercial Crew Program, is seen following the docking of SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard to the International Space Station, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

NASA astronauts Robert Behnken and Douglas Hurley are seen with Expedition 53 Commander NASA astronaut Chris Cassidy and cosmonauts Anatoly Ivanishin and Ivan Vagner of Roscosmos onboard the International Space Station after hatches were opened between SpaceX’s Crew Dragon spacecraft the orbiting laboratory, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

Kathy Lueders, manager of NASA's Commercial Crew Program, is seen after the hatches are opened between SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard and the International Space Station, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31.. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

Kathy Lueders, manager of NASA's Commercial Crew Program, applauds the SpaceX and NASA teams present in firing room four after the hatches were opened between SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard and the International Space Station, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31.. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

Kathy Lueders, manager of NASA's Commercial Crew Program, watches as the hatches are opened between SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard and the International Space Station, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31.. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

Views of SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard are seen on monitors inside firing room four as the spacecraft approaches to the International Space Station for docking, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31.. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

Kathy Lueders, manager of NASA's Commercial Crew Program,watchs the docking of SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard to the International Space Station, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31.. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

Ken Bowersox, acting Associate Administrator for NASA's Human Exploration and Operations Mission Directorate, watches as the hatches are opened between SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard and the International Space Station, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31.. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

A view of SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard are seen on monitors inside firing room four as the spacecraft approaches to the International Space Station for docking, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31.. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

Kathy Lueders, manager of NASA's Commercial Crew Program, left, and Hans Koenigsmann, vice president for build and flight reliability at SpaceX, watch as the hatches are opened between SpaceX’s Crew Dragon spacecraft with NASA astronauts Douglas Hurley and Robert Behnken onboard and the International Space Station, Sunday, May 31, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center and docked with the International Space Station at 10:16am EDT on Sunday, May 31.. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

STS071-S-001 (April 1995) --- The STS-71 crew patch design depicts the orbiter Atlantis in the process of the first international docking mission of the space shuttle Atlantis with the Russian Mir Space Station. The names of the 10 astronauts and cosmonauts who will fly aboard the orbiter as shown along the outer border of the patch. The rising sun symbolizes the dawn of a new era of cooperation between the two countries. The vehicles Atlantis and Mir are shown in separate circles converging at the center of the emblem symbolizing the merger of the space programs of the two space faring nations. The flags of the United States and Russia emphasize the equal partnership of the mission. The joint program symbol at the lower center of the patch acknowledges the extensive contributions made by the Mission Control Centers (MCC) of both countries. The crew insignia was designed by aviation and space artist, Bob McCall, who also designed the crew patch for the Apollo-Soyuz Test Project (ASTP) in 1975, the first international space docking mission. The NASA insignia design for space shuttle flights is reserved for use by the astronauts and for other official use as the NASA Administrator may authorize. Public availability has been approved only in the forms of illustrations by the various news media. When and if there is any change in this policy, which is not anticipated, the change will be publicly announced. Photo credit: NASA

ISS024-S-001 (January 2010) --- Science and Exploration are the cornerstones of NASA?s mission onboard the International Space Station (ISS). This emblem signifies the dawn of a new era in our program?s history. With each new expedition, as we approach assembly complete, our focus shifts toward the research nature of this world-class facility. Prominently placed in the foreground, the ISS silhouette leads the horizon. Each ray of the sun represents the five international partner organizations that encompass this cooperative program. Expedition 24 is one of the first missions expanding to a crew of six. These crews, symbolized here as stars arranged in two groups of three, will launch on Soyuz vehicles. The unbroken flight track symbolizes our continuous human presence in space, representing all who have and will dedicate themselves as crew and citizens of the International Space Station. The NASA insignia design for shuttle flights and station increments is reserved for use by the astronauts and for other official use as the NASA Administrator may authorize. Public availability has been approved only in the forms of illustrations by the various news media. When and if there is any change in this policy, which is not anticipated, the change will be publicly announced.

ISS024-S-001A (January 2010) --- Science and Exploration are the cornerstones of NASA?s mission onboard the International Space Station (ISS). This emblem signifies the dawn of a new era in our program?s history. With each new expedition, as we approach assembly complete, our focus shifts toward the research nature of this world-class facility. Prominently placed in the foreground, the ISS silhouette leads the horizon. Each ray of the sun represents the five international partner organizations that encompass this cooperative program. Expedition 24 is one of the first missions expanding to a crew of six. These crews, symbolized here as stars arranged in two groups of three, will launch on Soyuz vehicles. The unbroken flight track symbolizes our continuous human presence in space, representing all who have and will dedicate themselves as crew and citizens of the International Space Station. The NASA insignia design for shuttle flights and station increments is reserved for use by the astronauts and for other official use as the NASA Administrator may authorize. Public availability has been approved only in the forms of illustrations by the various news media. When and if there is any change in this policy, which is not anticipated, the change will be publicly announced.

KENNEDY SPACE CENTER, FLA. -- After a ceremony to commemorate the transition of the historic Operations and Checkout (O&C) Building high bay for use by the Constellation Program, representatives from NASA, Lockheed Martin, Space Florida and the state of Florida look at the banner, unfurled by Kennedy Space Center Director Bill Parsons (center), spotlighting the Orion crew exploration vehicle that will be assembled in the O&C. From left are Russell Romanella, director of the International Space Station/Payload Processing Directorate at Kennedy Space Center; Thad Altman, representative of the State of Florida; Cleon Lacefield, Lockheed Martin program manager; Parsons; Steve Koller, executive director of Space Florida (turned away); and Skip Hatfield, Orion Project manager. Originally built to process space vehicles in the Apollo era, the O&C Building will serve as the final assembly facility for the Orion crew exploration vehicle. Orion, America's human spaceflight vehicle of the future, will be capable of transporting four crewmembers for lunar missions and later will support crew transfers for Mars missions. Each Orion spacecraft also may be used to support up to six crewmembers to the International Space Station after the space shuttle is retired in 2010. Design, development and construction of Orion's components will be performed by Lockheed Martin for NASA at facilities throughout the country. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Skip Hatfield, Orion Project manager, addresses guests and attendees in the Operations and Checkout (O&C) Building high bay in the ceremony commemorating the bay's transition for use by the Constellation Program. Seated on the dais at right are representatives from NASA, Lockheed Martin, Space Florida and the state of Florida: Russell Romanella, director of the International Space Station/Payload Processing Directorate at Kennedy Space Center, Cleon Lacefield, Lockheed Martin program manager; Thad Altman, representative of the State of Florida; Bill Parsons, director of Kennedy Space Center; and Steve Koller, executive director of Space Florida. Originally built to process space vehicles in the Apollo era, the O&C Building will serve as the final assembly facility for the Orion crew exploration vehicle. Orion, America's human spaceflight vehicle of the future, will be capable of transporting four crewmembers for lunar missions and later will support crew transfers for Mars missions. Each Orion spacecraft also may be used to support up to six crewmembers to the International Space Station after the space shuttle is retired in 2010. Design, development and construction of Orion's components will be performed by Lockheed Martin for NASA at facilities throughout the country. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Kennedy Space Center Director Bill Parsons addresses guests and attendees in the Operations and Checkout (O&C) Building high bay in the ceremony commemorating the bay's transition for use by the Constellation Program. Representatives from NASA, Lockheed Martin, Space Florida and the state of Florida are seated at right: Russell Romanella, director of the International Space Station/Payload Processing Directorate at Kennedy Space Center, Cleon Lacefield, Lockheed Martin program manager; Thad Altman, representative of the State of Florida; Steve Koller, executive director of Space Florida; and Skip Hatfield, Orion Project manager. Originally built to process space vehicles in the Apollo era, the O&C Building will serve as the final assembly facility for the Orion crew exploration vehicle. Orion, America's human spaceflight vehicle of the future, will be capable of transporting four crewmembers for lunar missions and later will support crew transfers for Mars missions. Each Orion spacecraft also may be used to support up to six crewmembers to the International Space Station after the space shuttle is retired in 2010. Design, development and construction of Orion's components will be performed by Lockheed Martin for NASA at facilities throughout the country. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- Russell Romanella, director of the International Space Station/Payload Processing Directorate at Kennedy Space Center, addresses guests and attendees in the Operations and Checkout (O&C) Building high bay in the ceremony commemorating the bay's transition for use by the Constellation Program. Seated on the dais at right are Cleon Lacefield, Lockheed Martin program manager; Thad Altman, representative of the State of Florida; Bill Parsons, Kennedy Space Center director; Steve Koller, executive director of Space Florida; and Skip Hatfield, Orion Project manager. Originally built to process space vehicles in the Apollo era, the O&C Building will serve as the final assembly facility for the Orion crew exploration vehicle. Orion, America's human spaceflight vehicle of the future, will be capable of transporting four crewmembers for lunar missions and later will support crew transfers for Mars missions. Each Orion spacecraft also may be used to support up to six crewmembers to the International Space Station after the space shuttle is retired in 2010. Design, development and construction of Orion's components will be performed by Lockheed Martin for NASA at facilities throughout the country. Photo credit: NASA/Kim Shiflett

Norm Knight, deputy director of Flight Operations at NASA's Johnson Space Center, left, talks with Joel Montalbano, NASA’s International Space Station deputy program manager, following the launch of a SpaceX Falcon 9 rocket carrying the company's Crew Dragon spacecraft on the Demo-2 mission with NASA astronauts Douglas Hurley and Robert Behnken onboard, Saturday, May 30, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

Joel Montalbano, NASA’s International Space Station Deputy Program Manager, and Mark Geyer, Director of NASA’s Johnson Space Center, monitor the countdown of the launch of a SpaceX Falcon 9 rocket carrying the company's Crew Dragon spacecraft on NASA’s SpaceX Demo-2 mission with NASA astronauts Robert Behnken and Douglas Hurley onboard, Saturday, May 30, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

NASA International Space Station Program Manger Kirk Shireman, left, shakes hands with Stephen Koerner, Director of the Flight Operations Directorate at NASA’s Johnson Space Center, following the launch of a SpaceX Falcon 9 rocket carrying the company's Crew Dragon spacecraft on the Demo-2 mission with NASA astronauts Douglas Hurley and Robert Behnken onboard, Saturday, May 30, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

STS076-S-001 (November 1995) --- The STS-76 crew patch depicts the space shuttle Atlantis and Russia's Mir Space Station as the space ships prepare for a rendezvous and docking. The "Spirit of 76," an era of new beginnings, is represented by the space shuttle rising through the circle of 13 stars in the Betsy Ross flag. STS-76 begins a new period of international cooperation in space exploration with the first shuttle transport of a United States astronaut, Shannon W. Lucid, to the Mir Space Station for extended joint space research. Frontiers for future exploration are represented by stars and the planets. The three gold trails and the ring of stars in union form the astronaut logo. Two suited extravehicular activity (EVA) crew members in the outer ring represent the first EVA during Shuttle-Mir docked operations. The EVA objectives are to install science experiments on the Mir exterior and to develop procedures for future EVA's on the International Space Station. The surnames of the crew members encircle the patch: Kevin P. Chilton, mission commander; Richard A. Searfoss, pilot; Ronald M. Sega, Michael R. ( Rich) Clifford, Linda M. Godwin and Lucid, all mission specialists. This patch was designed by Brandon Clifford, age 12, and the crew members of STS-76. The NASA insignia design for space shuttle flights is reserved for use by the astronauts and for other official use as the NASA Administrator may authorize. Public availability has been approved only in the forms of illustrations by the various news media. When and if there is any change in this policy, which is not anticipated, the change will be publicly announced. Photo credit: NASA

A SpaceX Falcon 9 rocket carrying the company's Crew Dragon spacecraft is launched from Launch Complex 39A on NASA’s SpaceX Demo-2 mission to the International Space Station with NASA astronauts Robert Behnken and Douglas Hurley onboard, Saturday, May 30, 2020, at NASA’s Kennedy Space Center in Florida. The Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

NASA astronauts Robert Behnken and Douglas Hurley are seen on the fixed service structure of Launch Complex 39A before boarding SpaceX’s Crew Dragon spacecraft atop the company’s Flacon 9 rocket before launch of NASA’s SpaceX Demo-2 mission to the International Space Station, Saturday, May 30, 2020, at NASA’s Kennedy Space Center in Florida. The Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

A SpaceX Falcon 9 rocket carrying the company's Crew Dragon spacecraft is launched from Launch Complex 39A on NASA’s SpaceX Demo-2 mission to the International Space Station with NASA astronauts Robert Behnken and Douglas Hurley onboard, Saturday, May 30, 2020, at NASA’s Kennedy Space Center in Florida. The Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Behnken and Hurley launched at 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)