
International Docking Adapter #2 installation for SpaceX's CRS-9 mission.

International Docking Adapter #2 installation for SpaceX's CRS-9 mission.

International Docking Adapter #2 installation for SpaceX's CRS-9 mission.

International Docking Adapter #2 installation for SpaceX's CRS-9 mission.

A SpaceX Falcon 9 rocket, topped with the upgraded version of the Cargo Dragon spacecraft, is seen inside the company’s hangar at NASA’s Kennedy Space Center in Florida on Dec. 2, 2020, prior to being rolled out to the launch pad in preparation for the 21st Commercial Resupply Services (CRS-21) launch. The first launch for SpaceX under NASA’s second Commercial Resupply Services contract, CRS-21 will deliver critical supplies, equipment, and material to support a variety of science and research investigations that will take place aboard the International Space Station. Liftoff is scheduled for 11:39 a.m. EST on Saturday, Dec. 5, from Kennedy’s Launch Complex 39A.

A SpaceX Falcon 9 rocket, topped with the upgraded version of the Cargo Dragon spacecraft, is seen inside the company’s hangar at NASA’s Kennedy Space Center in Florida on Dec. 2, 2020, prior to being rolled out to the launch pad in preparation for the 21st Commercial Resupply Services (CRS-21) launch. The first launch for SpaceX under NASA’s second Commercial Resupply Services contract, CRS-21 will deliver critical supplies, equipment, and material to support a variety of science and research investigations that will take place aboard the International Space Station. Liftoff is scheduled for 11:39 a.m. EST on Saturday, Dec. 5, from Kennedy’s Launch Complex 39A.

The upgraded version of SpaceX’s Cargo Dragon spacecraft, Dragon 2, is seen atop a Falcon 9 rocket on Dec. 2, 2020, as they prepare to be rolled out to Launch Complex 39A at NASA’s Kennedy Space Center in Florida for the company’s 21st Commercial Resupply Services (CRS-21) launch. The first launch for SpaceX under NASA’s second Commercial Resupply Services contract, CRS-21 will deliver critical supplies, equipment, and material to support a variety of science and research investigations that will take place aboard the International Space Station. Liftoff is scheduled for 11:39 a.m. EST on Saturday, Dec. 5.

SpaceX CRS-15 lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida.

SpaceX CRS-15 lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

CRS-17 Payload STP-H6 move to SpaceX

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. Dragon will deliver more than 5,600 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket, topped with the company’s upgraded version of the Dragon spacecraft, stands vertical at NASA Kennedy Space Center’s Launch Complex 39A in Florida on Wednesday, Dec. 2, 2020. The first mission for SpaceX under NASA’s second Commercial Resupply Services contract, CRS-21 is scheduled to lift off from Launch Complex 39A on Saturday, Dec. 5, at 11:39 a.m. EST. The mission will deliver critical supplies and equipment to the International Space Station.

A SpaceX Falcon 9 rocket, with the uncrewed cargo Dragon spacecraft atop, lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission to the International Space Station. The Dragon spacecraft will deliver more than 4,300 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket, with the uncrewed cargo Dragon spacecraft atop, lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission to the International Space Station. The Dragon spacecraft will deliver more than 4,300 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. Dragon will deliver more than 4,300 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. Dragon will deliver more than 5,600 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket, with the uncrewed cargo Dragon spacecraft atop, lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission to the International Space Station. The Dragon spacecraft will deliver more than 4,300 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket climbs upward after lifting off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. SpaceX’s uncrewed cargo Dragon spacecraft, carried atop the Falcon 9, will deliver more than 5,600 pounds of science investigations and cargo to the International Space Station.

A SpaceX Falcon 9 rocket, topped with the company’s upgraded version of the Dragon spacecraft, stands vertical at NASA Kennedy Space Center’s Launch Complex 39A in Florida on Wednesday, Dec. 2, 2020. The first mission for SpaceX under NASA’s second Commercial Resupply Services contract, CRS-21 is scheduled to lift off from Launch Complex 39A on Saturday, Dec. 5, at 11:39 a.m. EST. The mission will deliver critical supplies and equipment to the International Space Station.

A SpaceX Falcon 9 rocket climbs upward after lifting off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. SpaceX’s uncrewed cargo Dragon spacecraft, carried atop the Falcon 9, will deliver more than 4,300 pounds of science investigations and cargo to the International Space Station.

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. Dragon will deliver more than 5,600 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket, with the uncrewed cargo Dragon spacecraft atop, lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission to the International Space Station. The Dragon spacecraft will deliver more than 5,600 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket climbs upward after lifting off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. SpaceX’s uncrewed cargo Dragon spacecraft, carried atop the Falcon 9, will deliver more than 5,600 pounds of science investigations and cargo to the International Space Station.

A SpaceX Falcon 9 rocket, with the uncrewed cargo Dragon spacecraft atop, lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission to the International Space Station. The Dragon spacecraft will deliver more than 4,300 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. Dragon will deliver more than 5,600 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket, topped with the company’s upgraded version of the Dragon spacecraft, stands vertical at NASA Kennedy Space Center’s Launch Complex 39A in Florida on Wednesday, Dec. 2, 2020. The first mission for SpaceX under NASA’s second Commercial Resupply Services contract, CRS-21 is scheduled to lift off from Launch Complex 39A on Saturday, Dec. 5, at 11:39 a.m. EST. The mission will deliver critical supplies and equipment to the International Space Station.

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. Dragon will deliver more than 4,300 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. Dragon will deliver more than 4,300 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. Dragon will deliver more than 4,300 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. Dragon will deliver more than 4,300 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket and cargo Dragon spacecraft stand ready for liftoff at Cape Canaveral Air Force Station’s Space Launch Complex 40 in Florida on March 6, 2020, for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission to the International Space Station. Liftoff occurred at 11:50 p.m. EST.

A SpaceX Falcon 9 rocket, with the uncrewed cargo Dragon spacecraft atop, lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission to the International Space Station. The Dragon spacecraft will deliver more than 5,600 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. Dragon will deliver more than 5,600 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket climbs upward after lifting off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. SpaceX’s uncrewed cargo Dragon spacecraft, carried atop the Falcon 9, will deliver more than 5,600 pounds of science investigations and cargo to the International Space Station.

A SpaceX Falcon 9 rocket, with the uncrewed cargo Dragon spacecraft atop, lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission to the International Space Station. The Dragon spacecraft will deliver more than 4,300 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. Dragon will deliver more than 5,600 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket, with the uncrewed cargo Dragon spacecraft atop, lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission to the International Space Station. The Dragon spacecraft will deliver more than 5,600 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. Dragon will deliver more than 5,600 pounds of science investigations and cargo to the orbiting laboratory.

A SpaceX Falcon 9 rocket, topped with the company’s upgraded version of the Dragon spacecraft, stands vertical at NASA Kennedy Space Center’s Launch Complex 39A in Florida on Wednesday, Dec. 2, 2020. The first mission for SpaceX under NASA’s second Commercial Resupply Services contract, CRS-21 is scheduled to lift off from Launch Complex 39A on Saturday, Dec. 5, at 11:39 a.m. EST. The mission will deliver critical supplies and equipment to the International Space Station.

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida at 11:50 p.m. EST on March 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. Dragon will deliver more than 4,300 pounds of science investigations and cargo to the orbiting laboratory.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, Ven Feng, NASA's manager of the International Space Station Transportation Integration Office, speaks to media at a post-launch news conference following the liftoff of SpaceX CRS-11, a commercial resupply services mission to the International Space Station. SpaceX CRS-11 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 5:07 p.m. EDT.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, Dan Hartman, NASA deputy manager of the International Space Station Program, speaks to media at a post-launch news conference following the liftoff of SpaceX CRS-12, a commercial resupply services mission to the International Space Station. SpaceX CRS-12 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 12:31 p.m. EDT.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, Hans Koenigsmann, vice president of Flight Reliability for SpaceX. SpaceX, speaks to media at a post-launch news conference following the liftoff of SpaceX CRS-11, a commercial resupply services mission to the International Space Station. SpaceX CRS-11 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 5:07 p.m. EDT.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, Jessica Jensen, Dragon mission manager for SpaceX, speaks to the news media at a post-launch news conference following the liftoff of SpaceX CRS-10, a commercial resupply services mission to the International Space Station. SpaceX CRS-10 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 9:39 a.m. EST.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, Jessica Jensen, Dragon mission manager for SpaceX, speaks to the news media at a post-launch news conference following the liftoff of SpaceX CRS-10, a commercial resupply services mission to the International Space Station. SpaceX CRS-10 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 9:39 a.m. EST.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, William Spetch, deputy manager of the International Space Station Transportation Office, speaks to the news media at a post-launch news conference following the liftoff of SpaceX CRS-10, a commercial resupply services mission to the International Space Station. SpaceX CRS-10 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 9:39 a.m. EST.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, Stephanie Martin of NASA Communications, speaks to media at a post-launch news conference following the liftoff of SpaceX CRS-12, a commercial resupply services mission to the International Space Station. SpaceX CRS-12 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 12:31 p.m. EDT.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, Hans Koenigsmann, SpaceX vice president of Flight and Build Reliability, speaks to media at a post-launch news conference following the liftoff of SpaceX CRS-12, a commercial resupply services mission to the International Space Station. SpaceX CRS-12 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 12:31 p.m. EDT.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, Dan Hartman, NASA deputy manager of the International Space Station Program, speaks to media at a post-launch news conference following the liftoff of SpaceX CRS-12, a commercial resupply services mission to the International Space Station. SpaceX CRS-12 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 12:31 p.m. EDT.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, Pam Underwood, manager of the Operations Integration Division of the Federal Aviation Administration Office of Commercial Space Transportation, speaks to the news media at a post-launch news conference following the liftoff of SpaceX CRS-10, a commercial resupply services mission to the International Space Station. SpaceX CRS-10 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 9:39 a.m. EST.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, Hans Koenigsmann, SpaceX vice president of Flight and Build Reliability, speaks to media at a post-launch news conference following the liftoff of SpaceX CRS-12, a commercial resupply services mission to the International Space Station. SpaceX CRS-12 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 12:31 p.m. EDT.

In the Kennedy Space Center’s Press Site auditorium, agency and industry leaders speak to members of the media at a prelaunch news conference for the SpaceX CRS-10 commercial resupply services mission to the International Space Station. Jessica Jensen, director of Dragon mission management for SpaceX, answers questions.

In the Kennedy Space Center’s Press Site auditorium, agency and industry leaders speak to members of the media at a prelaunch news conference for the SpaceX CRS-10 commercial resupply services mission to the International Space Station. Tara Ruttley, associate scientist for the International Space Station Program at Johnson Space Center in Houston, answers questions.

In the Kennedy Space Center’s Press Site auditorium, agency and industry leaders speak to members of the media at a prelaunch news conference for the SpaceX CRS-10 commercial resupply services mission to the International Space Station. Tara Ruttley, associate scientist for the International Space Station Program at Johnson Space Center in Houston answers questions.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, NASA and industry leaders speak to media at a post-launch news conference following the liftoff of SpaceX CRS-10, a commercial resupply services mission to the International Space Station. From left are: George Diller, NASA Communications; William Spetch, deputy manager of the International Space Station Transportation Office; Jessica Jensen, Dragon mission manager for SpaceX; and Pam Underwood, manager of the Operations Integration Division of the Federal Aviation Administration Office of Commercial Space Transportation. SpaceX CRS-10 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 9:39 a.m. EST.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, NASA and industry leaders speak to media at a post-launch news conference following the liftoff of SpaceX CRS-10, a commercial resupply services mission to the International Space Station. From left are: George Diller, NASA Communications; William Spetch, deputy manager of the International Space Station Transportation Office; Jessica Jensen, Dragon mission manager for SpaceX; and Pam Underwood, manager of the Operations Integration Division of the Federal Aviation Administration Office of Commercial Space Transportation. SpaceX CRS-10 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 9:39 a.m. EST.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, NASA and industry leaders speak to media at a post-launch news conference following the liftoff of SpaceX CRS-10, a commercial resupply services mission to the International Space Station. From left are: William Spetch, deputy manager of the International Space Station Transportation Office; Jessica Jensen, Dragon mission manager for SpaceX; and Pam Underwood, manager of the Operations Integration Division of the Federal Aviation Administration Office of Commercial Space Transportation. SpaceX CRS-10 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 9:39 a.m. EST.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, NASA and industry leaders speak to media at a post-launch news conference following the liftoff of SpaceX CRS-11, a commercial resupply services mission to the International Space Station. From left are: Ven Feng, NASA's manager of the International Space Station Transportation Integration Office, and Hans Koenigsmann, vice president of Flight Reliability for SpaceX. SpaceX CRS-11 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 5:07 p.m. EDT.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, Jessica Jensen, Director, Dragon Mission Management, SpaceX, speaks to media at a post-launch news conference following the liftoff of SpaceX CRS-15. The flight is a commercial resupply services mission to the International Space Station. SpaceX CRS-15 lifted off atop a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station on Friday, June 29, 2018, at 5:42 a.m. EDT with supplies and materials to support multiple critical science and research investigations.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, NASA and industry leaders speak to media at a post-launch news conference following the liftoff of SpaceX CRS-10, a commercial resupply services mission to the International Space Station. From left are: Jessica Jensen, Dragon mission manager for SpaceX; and Pam Underwood, manager of the Operations Integration Division of the Federal Aviation Administration Office of Commercial Space Transportation. SpaceX CRS-10 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 9:39 a.m. EST.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, NASA and industry leaders speak to media at a post-launch news conference following the liftoff of SpaceX CRS-11, a commercial resupply services mission to the International Space Station. From left are: Mike Curie of NASA Communications, Ven Feng, NASA's manager of the International Space Station Transportation Integration Office, and Hans Koenigsmann, vice president of Flight Reliability for SpaceX. SpaceX CRS-11 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 5:07 p.m. EDT.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, Kirk Shireman, manager, International Space Station Program, speaks to media at a post-launch news conference following the liftoff of SpaceX CRS-15. The flight is a commercial resupply services mission to the International Space Station. SpaceX CRS-15 lifted off atop a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station on Friday, June 29, 2018, at 5:42 a.m. EDT with supplies and materials to support multiple critical science and research investigations.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, Stephanie Schierholz of NASA Communications speaks to media at a post-launch news conference following the liftoff of SpaceX CRS-15. The flight is a commercial resupply services mission to the International Space Station. SpaceX CRS-15 lifted off atop a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station on Friday, June 29, 2018, at 5:42 a.m. EDT with supplies and materials to support multiple critical science and research investigations.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, NASA and industry leaders speak to media at a post-launch news conference following the liftoff of SpaceX CRS-12, a commercial resupply services mission to the International Space Station. From left are: Stephanie Martin of NASA Communications, Dan Hartman, NASA deputy manager of the International Space Station Program, and Hans Koenigsmann, SpaceX vice president of Flight and Build Reliability. SpaceX CRS-12 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 12:31 p.m. EDT.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, NASA and industry leaders speak to media at a post-launch news conference following the liftoff of SpaceX CRS-12, a commercial resupply services mission to the International Space Station. From left are: Stephanie Martin of NASA Communications, Dan Hartman, NASA deputy manager of the International Space Station Program, and Hans Koenigsmann, SpaceX vice president of Flight and Build Reliability. SpaceX CRS-12 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 12:31 p.m. EDT.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, from left, Stephanie Schierholz of NASA Communications, Kirk Shireman, manager, International Space Station Program, and Jessica Jensen, Director, Dragon Mission Management, SpaceX, speak to media at a post-launch news conference following the liftoff of SpaceX CRS-15. The flight is a commercial resupply services mission to the International Space Station. SpaceX CRS-15 lifted off atop a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station on Friday, June 29, 2018, at 5:42 a.m. EDT with supplies and materials to support multiple critical science and research investigations.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, from left, Kirk Shireman, manager, International Space Station Program, and Jessica Jensen, Director, Dragon Mission Management, SpaceX, speak to media at a post-launch news conference following the liftoff of SpaceX CRS-15. The flight is a commercial resupply services mission to the International Space Station. SpaceX CRS-15 lifted off atop a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station on Friday, June 29, 2018, at 5:42 a.m. EDT with supplies and materials to support multiple critical science and research investigations.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, from left, Stephanie Schierholz of NASA Communications, Kirk Shireman, manager, International Space Station Program, and Jessica Jensen, Director, Dragon Mission Management, SpaceX, speak to media at a post-launch news conference following the liftoff of SpaceX CRS-15. The flight is a commercial resupply services mission to the International Space Station. SpaceX CRS-15 lifted off atop a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station on Friday, June 29, 2018, at 5:42 a.m. EDT with supplies and materials to support multiple critical science and research investigations.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, NASA and industry leaders speak to media at a post-launch news conference following the liftoff of SpaceX CRS-10, a commercial resupply services mission to the International Space Station. From left are: William Spetch, deputy manager of the International Space Station Transportation Office; Jessica Jensen, Dragon mission manager for SpaceX; and Pam Underwood, manager of the Operations Integration Division of the Federal Aviation Administration Office of Commercial Space Transportation. SpaceX CRS-10 lifted off atop a Falcon 9 rocket from Kennedy's Launch Complex 39A at 9:39 a.m. EST.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, from left, Stephanie Martin of NASA Communications, speaks to media at a post-launch news conference following the liftoff of SpaceX CRS-13. The flight is a commercial resupply services mission to the International Space Station. SpaceX CRS-13 lifted off atop a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station at 10:36 a.m. EST with supplies and equipment and new science experiments for technology research.

In the Kennedy Space Center’s Press Site auditorium, agency and industry leaders speak to members of the media at a prelaunch news conference for the SpaceX CRS-10 commercial resupply services mission to the International Space Station. From left are: Dan Hartman, deputy manager for the International Space Station Program at NASA's Johnson Space Center in Texas; and Jessica Jensen, director of Dragon mission management for SpaceX.

In the Kennedy Space Center’s Press Site auditorium, agency and industry leaders speak to members of the media at a prelaunch news conference for the SpaceX CRS-10 commercial resupply services mission to the International Space Station. From left are: George Diller of NASA Communications; Dan Hartman, deputy manager for the International Space Station Program at NASA's Johnson Space Center in Texas; Jessica Jensen, director of Dragon mission management for SpaceX; and Tara Ruttley, associate scientist for the International Space Station Program at Johnson.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, Jessica Jensen, SpaceX director of Dragon Mission Management, speaks to media at a post-launch news conference following the liftoff of the SpaceX Falcon 9 rocket at 4:30 p.m. EST. The flight is a commercial resupply services mission for NASA to the International Space Station. SpaceX CRS-14 lifted off atop the Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station carrying supplies and equipment and new science experiments for technology research.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida,Joel Montalbano, deputy manager, International Space Station Program manager at NASA's Johnson Space Center in Houston, speaks to media at a post-launch news conference following the liftoff of the SpaceX Falcon 9 rocket at 4:30 p.m. EST. The flight is a commercial resupply services mission for NASA to the International Space Station. SpaceX CRS-14 lifted off atop the Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station carrying supplies and equipment and new science experiments for technology research.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket and cargo Dragon spacecraft stand poised for launch moments before liftoff at Kennedy Space Center’s Launch Complex 39A in Florida on Dec. 6, 2020, for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission to the International Space Station. The first launch for SpaceX under NASA’s CRS-2 contract, the mission blasted off the pad at 11:17 a.m. EST.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

A SpaceX Falcon 9 rocket lifts off from Launch Complex 39A at Kennedy Space Center in Florida at 11:17 a.m. EST on Dec. 6, 2020, carrying the uncrewed cargo Dragon spacecraft on its journey to the International Space Station for NASA and SpaceX’s 21st Commercial Resupply Services (CRS-21) mission. Dragon will deliver more than 6,400 pounds of science investigations and cargo to the orbiting laboratory. The mission marks the first launch for SpaceX under NASA’s CRS-2 contract.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, from left, Ven Feng, manager of the Transportation Integration Office for the International Space Station Program, and Jessica Jensen, SpaceX director of Dragon Mission Management, speak to media at a post-launch news conference following the liftoff of SpaceX CRS-13. The flight is a commercial resupply services mission to the International Space Station. SpaceX CRS-13 lifted off atop a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station at 10:36 a.m. EST with supplies and equipment and new science experiments for technology research.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, from left, Ven Feng, manager of the Transportation Integration Office for the International Space Station Program, congratulates Jessica Jensen, SpaceX director of Dragon Mission Management, following the successful liftoff of SpaceX CRS-13. The flight is a commercial resupply services mission to the International Space Station. SpaceX CRS-13 lifted off atop a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station at 10:36 a.m. EST with supplies and equipment and new science experiments for technology research.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, from left, Jessica Jensen, SpaceX director of Dragon Mission Management, speaks to media at a post-launch news conference following the liftoff of SpaceX CRS-13. The flight is a commercial resupply services mission to the International Space Station. SpaceX CRS-13 lifted off atop a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station at 10:36 a.m. EST with supplies and equipment and new science experiments for technology research.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, from left, Ven Feng, manager of the Transportation Integration Office for the International Space Station Program, congratulates Jessica Jensen, SpaceX director of Dragon Mission Management, following the successful liftoff of SpaceX CRS-13. The flight is a commercial resupply services mission to the International Space Station. SpaceX CRS-13 lifted off atop a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station at 10:36 a.m. EST with supplies and equipment and new science experiments for technology research.

In the Press Site auditorium of NASA's Kennedy Space Center in Florida, from left, Ven Feng, manager of the Transportation Integration Office for the International Space Station Program, and Jessica Jensen, SpaceX director of Dragon Mission Management, speak to media at a post-launch news conference following the liftoff of SpaceX CRS-13. The flight is a commercial resupply services mission to the International Space Station. SpaceX CRS-13 lifted off atop a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station at 10:36 a.m. EST with supplies and equipment and new science experiments for technology research.