A SpaceX Falcon 9 rocket with the company's Dragon spacecraft on top is seen on the launch pad at sunset at Space Launch Complex 40 as preparations continue for the Crew-12 mission, Tuesday, Feb. 10, 2026, at Cape Canaveral Space Force Station in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, from Space Launch Complex 40. Photo Credit: (NASA/Aubrey Gemignani)

A SpaceX Falcon 9 rocket with the company's Dragon spacecraft on top is seen on the launch pad at sunset at Space Launch Complex 40 as preparations continue for the Crew-12 mission, Tuesday, Feb. 10, 2026, at Cape Canaveral Space Force Station in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, from Space Launch Complex 40. Photo Credit: (NASA/Aubrey Gemignani)

A SpaceX Falcon 9 rocket with the company's Dragon spacecraft on top is seen on the launch pad at sunset at Space Launch Complex 40 as preparations continue for the Crew-12 mission, Tuesday, Feb. 10, 2026, at Cape Canaveral Space Force Station in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, from Space Launch Complex 40. Photo Credit: (NASA/Aubrey Gemignani)

A SpaceX Falcon 9 rocket with the company's Dragon spacecraft on top is seen on the launch pad at sunset at Space Launch Complex 40 as preparations continue for the Crew-12 mission, Tuesday, Feb. 10, 2026, at Cape Canaveral Space Force Station in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, from Space Launch Complex 40. Photo Credit: (NASA/Aubrey Gemignani)

NASA’s Pilatus PC-12, based out of NASA’s Glenn Research Center in Cleveland, is seen flying over NASA’s Armstrong Flight Research Center in Edwards, California. On Sept. 18, 2024, NASA pilots and crew from both centers flew the PC-12 over the Mojave Desert in a series of familiarization flights. Familiarization flights involve egress training, preflight walkaround, interior preflight, engine start, taxi, and takeoff.  

NASA Administrator Jared Isaacman gives remarks ahead of the launch of NASA’s SpaceX Crew-12 mission, Friday, Feb. 13, 2026, at the Operations and Support Building II at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Falcon 9 rocket and Dragon spacecraft to the International Space Station as part of the agency’s Commercial Crew Program. NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, from Space Launch Complex 40. Photo Credit: (NASA/John Kraus)

NASA Administrator Jared Isaacman gives remarks ahead of the launch of NASA’s SpaceX Crew-12 mission, Friday, Feb. 13, 2026, at the Operations and Support Building II at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Falcon 9 rocket and Dragon spacecraft to the International Space Station as part of the agency’s Commercial Crew Program. NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, from Space Launch Complex 40. Photo Credit: (NASA/John Kraus)

NASA Administrator Jared Isaacman gives remarks ahead of the launch of NASA’s SpaceX Crew-12 mission, Friday, Feb. 13, 2026, at the Operations and Support Building II at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Falcon 9 rocket and Dragon spacecraft to the International Space Station as part of the agency’s Commercial Crew Program. NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, from Space Launch Complex 40. Photo Credit: (NASA/John Kraus)

Teams monitor the countdown during a dress rehearsal in preparation for the launch of a SpaceX Falcon 9 rocket carrying the company's Dragon spacecraft on NASA’s SpaceX Crew-12 mission with NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev onboard, Monday, Feb. 9, 2026, in the control room of SpaceX’s HangarX at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev will launch from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

Teams monitor the countdown during a dress rehearsal in preparation for the launch of a SpaceX Falcon 9 rocket carrying the company's Dragon spacecraft on NASA’s SpaceX Crew-12 mission with NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev onboard, Monday, Feb. 9, 2026, in the control room of SpaceX’s HangarX at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev will launch from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

Teams monitor the countdown during a dress rehearsal in preparation for the launch of a SpaceX Falcon 9 rocket carrying the company's Dragon spacecraft on NASA’s SpaceX Crew-12 mission with NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev onboard, Monday, Feb. 9, 2026, in the control room of SpaceX’s HangarX at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev will launch from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

Teams monitor the countdown during a dress rehearsal in preparation for the launch of a SpaceX Falcon 9 rocket carrying the company's Dragon spacecraft on NASA’s SpaceX Crew-12 mission with NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev onboard, Monday, Feb. 9, 2026, in the control room of SpaceX’s HangarX at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev will launch from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

Richard Jones, manager of the Mission Management and Integration Office for NASA's Commercial Crew Program monitors the countdown during a dress rehearsal in preparation for the launch of a SpaceX Falcon 9 rocket carrying the company's Dragon spacecraft on NASA’s SpaceX Crew-12 mission with NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev onboard, Monday, Feb. 9, 2026, in the control room of SpaceX’s HangarX at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev will launch from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

Teams monitor the countdown during a dress rehearsal in preparation for the launch of a SpaceX Falcon 9 rocket carrying the company's Dragon spacecraft on NASA’s SpaceX Crew-12 mission with NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev onboard, Monday, Feb. 9, 2026, in the control room of SpaceX’s HangarX at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev will launch from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

John Posey, lead engineer for Dragon in NASA's Commercial Crew Program, monitors the countdown during a dress rehearsal in preparation for the launch of a SpaceX Falcon 9 rocket carrying the company's Dragon spacecraft on NASA’s SpaceX Crew-12 mission with NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev onboard, Monday, Feb. 9, 2026, in the control room of SpaceX’s HangarX at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev will launch from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Kjell Lindgren monitors the countdown during a dress rehearsal in preparation for the launch of a SpaceX Falcon 9 rocket carrying the company's Dragon spacecraft on NASA’s SpaceX Crew-12 mission with NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev onboard, Monday, Feb. 9, 2026, in the control room of SpaceX’s HangarX at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev will launch from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

John Posey, lead engineer for Dragon in NASA's Commercial Crew Program, monitors the countdown during a dress rehearsal in preparation for the launch of a SpaceX Falcon 9 rocket carrying the company's Dragon spacecraft on NASA’s SpaceX Crew-12 mission with NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev onboard, Monday, Feb. 9, 2026, in the control room of SpaceX’s HangarX at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev will launch from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

Astronaut Richard F. Gordon Jr., Apollo 12 command module pilot, suits up in the Kennedy Space Center's Manned Spacecraft Operations Building during the Apollo 12 prelaunch countdown.

jsc2019e070459 (12/13/2019) --- A preflight view taken of the ISS Universal Waste Management System, Unit 1 during EMI/EMC Testing. This technology provides additional waste disposal points to the International Space Station (ISS) and aids in planning for future exploration missions including Deep Space Gateway (DSG). A smaller, more comfortable and more reliable waste-disposal method allows the crew to focus on other activities and enables further exploration in space.

jsc2019e070462 (12/13/2019) --- A preflight view taken of the ISS Universal Waste Management System, Unit 1 during EMI/EMC Testing. This technology provides additional waste disposal points to the International Space Station (ISS) and aids in planning for future exploration missions including Deep Space Gateway (DSG). A smaller, more comfortable and more reliable waste-disposal method allows the crew to focus on other activities and enables further exploration in space.

jsc2019e070457 (12/13/2019) --- A preflight view taken of the ISS Universal Waste Management System, Unit 1 during EMI/EMC Testing. This technology provides additional waste disposal points to the International Space Station (ISS) and aids in planning for future exploration missions including Deep Space Gateway (DSG). A smaller, more comfortable and more reliable waste-disposal method allows the crew to focus on other activities and enables further exploration in space.

jsc2019e070684_alt (12/16/2019) --- A preflight view taken of the ISS Universal Waste Management System, Unit 1 during EMI/EMC Testing. This technology provides additional waste disposal points to the International Space Station (ISS) and aids in planning for future exploration missions including Deep Space Gateway (DSG). A smaller, more comfortable and more reliable waste-disposal method allows the crew to focus on other activities and enables further exploration in space.

S69-54412 (11 Oct. 1969) --- The members of the Apollo 12 prime crew discuss their scheduled lunar landing mission at a preflight press conference which was held on Oct. 11, 1969, in the Manned Spacecraft Center auditorium. Left to right, are astronauts Alan L. Bean, lunar module pilot; Richard F. Gordon Jr., command module pilot; and Charles Conrad Jr., commander.

jsc2019e070461 (12/13/2019) --- A preflight view taken of the ISS Universal Waste Management System, Unit 1 during EMI/EMC Testing. This technology provides additional waste disposal points to the International Space Station (ISS) and aids in planning for future exploration missions including Deep Space Gateway (DSG). A smaller, more comfortable and more reliable waste-disposal method allows the crew to focus on other activities and enables further exploration in space.

jsc2019e070463 (12/13/2019) --- A preflight view taken of the ISS Universal Waste Management System, Unit 1 during EMI/EMC Testing. This technology provides additional waste disposal points to the International Space Station (ISS) and aids in planning for future exploration missions including Deep Space Gateway (DSG). A smaller, more comfortable and more reliable waste-disposal method allows the crew to focus on other activities and enables further exploration in space.

S75-28485 (12 July 1975) --- Astronaut Vance D. Brand, command module pilot of the American ASTP prime crew, practices operating a Docking Module hatch during Apollo-Soyuz Test Project preflight training at NASA's Johnson Space Center. The Docking Module is designed to link the Apollo and Soyuz spacecraft during their docking mission in Earth orbit. Gary L. Doerre of JSC?s Crew Training and Procedures Division is working with Brand. Doerre is wearing a face mask to help prevent possible exposure to Brand of disease prior to the ASTP launch.

After addressing the media at the Shuttle Landing Facility, the STS-99 crew wave goodbye as they leave for crew quarters in the Operations and Checkout Building. The crew is ready to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

After addressing the media at the Shuttle Landing Facility, the STS-99 crew wave goodbye as they leave for crew quarters in the Operations and Checkout Building. The crew is ready to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

NASA astronaut Jack Hathaway is seen as he prepares to depart the Neil A. Armstrong Operations and Checkout Building for Space Launch Complex 40 on Cape Canaveral Space Force Station with crew mates NASA astronaut Jessica Meir, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev, during a dress rehearsal prior to the Crew-12 mission launch, Monday, Feb. 9, 2026, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, 2026, from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

Max Schneiderman, an aerospace flight systems engineer at NASA, left, and John Posey, lead engineer for Dragon in NASA's Commercial Crew Program monitor the countdown during a dress rehearsal in preparation for the launch of a SpaceX Falcon 9 rocket carrying the company's Dragon spacecraft on NASA’s SpaceX Crew-12 mission with NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev onboard, Monday, Feb. 9, 2026, in the control room of SpaceX’s HangarX at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev will launch from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronauts Jack Hathaway, middle left, Jessica Meir, middle right, Roscosmos cosmonaut Andrey Fedyaev, left, and ESA (European Space Agency) astronaut Sophie Adenot, right, wearing SpaceX spacesuits, are seen as they prepare to depart the Neil A. Armstrong Operations and Checkout Building for Space Launch Complex 40 on Cape Canaveral Space Force Station during a dress rehearsal prior to the Crew-12 mission launch, Monday, Feb. 9, 2026, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, 2026, from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

From left to right, NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev, wearing SpaceX spacesuits, are seen as they prepare to depart the Neil A. Armstrong Operations and Checkout Building for Space Launch Complex 40 on Cape Canaveral Space Force Station during a dress rehearsal prior to the Crew-12 mission launch, Monday, Feb. 9, 2026, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, 2026, from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

Scott Tingle, Chief of the Astronaut Office, monitors the countdown during a dress rehearsal in preparation for the launch of a SpaceX Falcon 9 rocket carrying the company's Dragon spacecraft on NASA’s SpaceX Crew-12 mission with NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev onboard, Monday, Feb. 9, 2026, in the control room of SpaceX’s HangarX at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev will launch from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

Roscosmos cosmonaut Andrey Fedyaev is seen as he prepares to depart the Neil A. Armstrong Operations and Checkout Building for Space Launch Complex 40 on Cape Canaveral Space Force Station with crew mates NASA astronauts Jessica Meir, Jack Hathaway and ESA (European Space Agency) astronaut Sophie Adenot, during a dress rehearsal prior to the Crew-12 mission launch, Monday, Feb. 9, 2026, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Fedyaev, Adenot, Meir, and Hathaway are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, 2026, from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronauts Jack Hathaway, left front, Jessica Meir, right front, ESA (European Space Agency) astronaut Sophie Adenot, back right, and Roscosmos cosmonaut Andrey Fedyaev, wearing SpaceX spacesuits, are seen as they prepare to depart the Neil A. Armstrong Operations and Checkout Building for Space Launch Complex 40 on Cape Canaveral Space Force Station during a dress rehearsal prior to the Crew-12 mission launch, Monday, Feb. 9, 2026, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, 2026, from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

From left to right, NASA astronauts Jessica Meir, Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev, wearing SpaceX spacesuits, are seen as they prepare to depart the Neil A. Armstrong Operations and Checkout Building for Space Launch Complex 40 on Cape Canaveral Space Force Station during a dress rehearsal prior to the Crew-12 mission launch, Monday, Feb. 9, 2026, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, 2026, from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

ESA (European Space Agency) astronaut Sophie Adenot is seen as she prepares to depart the Neil A. Armstrong Operations and Checkout Building for Space Launch Complex 40 on Cape Canaveral Space Force Station with crew mates NASA astronauts Jessica Meir, Jack Hathaway and Roscosmos cosmonaut Andrey Fedyaev, during a dress rehearsal prior to the Crew-12 mission launch, Monday, Feb. 9, 2026, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Adenot, Meir, Hathaway, and Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, 2026, from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Jessica Meir is seen as she prepares to depart the Neil A. Armstrong Operations and Checkout Building for Space Launch Complex 40 on Cape Canaveral Space Force Station with crew mates NASA astronaut Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev, during a dress rehearsal prior to the Crew-12 mission launch, Monday, Feb. 9, 2026, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, 2026, from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

Roscosmos cosmonaut Andrey Fedyaev is seen as he prepares to depart the Neil A. Armstrong Operations and Checkout Building for Space Launch Complex 40 on Cape Canaveral Space Force Station with crew mates NASA astronauts Jessica Meir, Jack Hathaway and ESA (European Space Agency) astronaut Sophie Adenot, during a dress rehearsal prior to the Crew-12 mission launch, Monday, Feb. 9, 2026, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Fedyaev, Adenot, Meir, and Hathaway are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, 2026, from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronauts Jack Hathaway, middle left, Jessica Meir, middle right, Roscosmos cosmonaut Andrey Fedyaev, left, and ESA (European Space Agency) astronaut Sophie Adenot, right, wearing SpaceX spacesuits, are seen as they prepare to depart the Neil A. Armstrong Operations and Checkout Building for Space Launch Complex 40 on Cape Canaveral Space Force Station during a dress rehearsal prior to the Crew-12 mission launch, Monday, Feb. 9, 2026, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, 2026, from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Jack Hathaway is seen as he prepares to depart the Neil A. Armstrong Operations and Checkout Building for Space Launch Complex 40 on Cape Canaveral Space Force Station with crew mates NASA astronaut Jessica Meir, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev, during a dress rehearsal prior to the Crew-12 mission launch, Monday, Feb. 9, 2026, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, 2026, from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronauts Jack Hathaway, left front, Jessica Meir, right front, ESA (European Space Agency) astronaut Sophie Adenot, back right, and Roscosmos cosmonaut Andrey Fedyaev, wearing SpaceX spacesuits, are seen as they prepare to depart the Neil A. Armstrong Operations and Checkout Building for Space Launch Complex 40 on Cape Canaveral Space Force Station during a dress rehearsal prior to the Crew-12 mission launch, Monday, Feb. 9, 2026, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, 2026, from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

NASA astronaut Jessica Meir is seen as she prepares to depart the Neil A. Armstrong Operations and Checkout Building for Space Launch Complex 40 on Cape Canaveral Space Force Station with crew mates NASA astronaut Jack Hathaway, ESA (European Space Agency) astronaut Sophie Adenot, and Roscosmos cosmonaut Andrey Fedyaev, during a dress rehearsal prior to the Crew-12 mission launch, Monday, Feb. 9, 2026, at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-12 mission is the twelfth crew rotation mission of the SpaceX Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Meir, Hathaway, Adenot, and Fedyaev are scheduled to launch at 5:15 a.m. EST on Friday, Feb. 13, 2026, from Space Launch Complex 40 at the Cape Canaveral Space Force Station. Photo Credit: (NASA/Aubrey Gemignani)

STS-99 Mission Specialist Gerhard P.J. Thiele of Germany arrives at KSC aboard a T-38 jet aircraft eager to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. Thiele is with the European Space Agency. The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

STS-99 Pilot Dominic Gorie arrives at KSC aboard a T-38 jet aircraft to prepare for launch of Endeavour Jan. 31 at 12:47 p.m. EST. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety

STS-99 Commander Kevin Kregel arrives at KSC aboard a T-38 jet aircraft to prepare for launch of Endeavour Jan. 31 at 12:47 p.m. EST. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety

After landing at the Shuttle Landing Facility aboard a T-38 jet aircraft, STS-99 Pilot Dominic Gorie stands ready to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

A smiling STS-99 Mission Specialist Mamoru Mohri of Japan arrives at KSC aboard a T-38 jet aircraft eager to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. Mohri is with the Japanese National Space Development Agency (NASDA). The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

After landing at the Shuttle Landing Facility aboard a T-38 jet aircraft, STS-99 Pilot Dominic Gorie stands ready to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

STS-99 Commander Kevin Kregel arrives at KSC aboard a T-38 jet aircraft to prepare for launch of Endeavour Jan. 31 at 12:47 p.m. EST. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety

STS-99 Mission Specialist Janice Voss (Ph.D.) looks happy after landing at KSC aboard a T-38 jet aircraft to prepare for launch of Endeavour Jan. 31 at 12:47 p.m. EST. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety

STS-99 Mission Specialist Janice Voss (Ph.D.) looks happy after landing at KSC aboard a T-38 jet aircraft to prepare for launch of Endeavour Jan. 31 at 12:47 p.m. EST. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety

STS-99 Mission Specialist Gerhard P.J. Thiele of Germany arrives at KSC aboard a T-38 jet aircraft eager to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. Thiele is with the European Space Agency. The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

STS-99 Pilot Dominic Gorie arrives at KSC aboard a T-38 jet aircraft to prepare for launch of Endeavour Jan. 31 at 12:47 p.m. EST. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety

A smiling STS-99 Mission Specialist Mamoru Mohri of Japan arrives at KSC aboard a T-38 jet aircraft eager to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. Mohri is with the Japanese National Space Development Agency (NASDA). The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

STS-99 Commander Kevin Kregel arrives at Kennedy Space Center aboard a T-38 jet aircraft. He and the other five crew members are back at KSC to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. The crew had returned to Houston after the scrubbed launch. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

STS-99 Commander Kevin Kregel arrives at Kennedy Space Center aboard a T-38 jet aircraft. He and the other five crew members are back at KSC to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. The crew had returned to Houston after the scrubbed launch. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

After landing at the Shuttle Landing Facility aboard T-38 jet aircraft, the STS-99 crew addressed the media. Mission Specialists Gerhard Thiele of Germany waits while Mamoru Mohri of Japan (right) responds to a question. The crew is ready to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

Center Director Roy Bridges (right) welcomes STS-99 Commander Kevin Kregel (left) and the rest of the crew after their arrival at KSC's Shuttle Landing Facility. Behind them are the T-38 jets that transported the crew, with the mate/demate tower in the background. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety. Launch of Endeavour is scheduled for Jan. 31 at 12:47 p.m. EST

After arriving at KSC's Shuttle Landing Facility, the STS-99 crew pause to greet the media and Commander Kevin Kregel (right) introduces his crew: (from left) Mission Specialists Gerhard Thiele (Ph.D.) and Mamoru Mohri (Ph.D.); Pilot Dominic Gorie; and Mission Specialists Janet Lynn Kavandi (Ph.D.) and Janice Voss (Ph.D.). Thiele is with the European Space Agency and Mohri is with the National Space Development Agency (NASDA) of Japan. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety. Launch of Endeavour is scheduled for Jan. 31 at 12:47 p.m. EST

Center Director Roy Bridges (right) welcomes STS-99 Commander Kevin Kregel (left) and the rest of the crew after their arrival at KSC's Shuttle Landing Facility. Behind them are the T-38 jets that transported the crew, with the mate/demate tower in the background. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety. Launch of Endeavour is scheduled for Jan. 31 at 12:47 p.m. EST

After arriving at KSC's Shuttle Landing Facility, the STS-99 crew pause to greet the media and Commander Kevin Kregel (right) introduces his crew: (from left) Mission Specialists Gerhard Thiele (Ph.D.) and Mamoru Mohri (Ph.D.); Pilot Dominic Gorie; and Mission Specialists Janet Lynn Kavandi (Ph.D.) and Janice Voss (Ph.D.). Thiele is with the European Space Agency and Mohri is with the National Space Development Agency (NASDA) of Japan. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety. Launch of Endeavour is scheduled for Jan. 31 at 12:47 p.m. EST

After landing at the Shuttle Landing Facility aboard T-38 jet aircraft, the STS-99 crew addressed the media. Mission Specialists Gerhard Thiele of Germany waits while Mamoru Mohri of Japan (right) responds to a question. The crew is ready to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

After landing at the Shuttle Landing Facility aboard T-38 jet aircraft, STS-99 Mission Specialists (from left) Gerhard Thiele of Germany and Mamoru Mohri of Japan are greeted by Dave King, director of Shuttle Operations. Behind Mohri can be seen Commander Kevin Kregel and Mission Specialist Janice Voss. The crew, which includes Pilot Dom gorie and Mission Specialist Janet Kavandi, are ready to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

After landing at the Shuttle Landing Facility aboard T-38 jet aircraft, STS-99 Mission Specialists (from left) Gerhard Thiele of Germany and Mamoru Mohri of Japan are greeted by Dave King, director of Shuttle Operations. Behind Mohri can be seen Commander Kevin Kregel and Mission Specialist Janice Voss. The crew, which includes Pilot Dom gorie and Mission Specialist Janet Kavandi, are ready to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

After landing at the Shuttle Landing Facility aboard T-38 jet aircraft, the STS-99 crew addresses the media. Standing, left to right, are Mission Specialists Gerhard Thiele of Germany and Mamoru Mohri of Japan, Commander Kevin Kregel (at the microphone), Mission Specialists Janice Voss and Janet Kavandi, and Pilot Dominic Gorie. They are ready to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

After landing at the Shuttle Landing Facility aboard T-38 jet aircraft, the STS-99 crew addresses the media. Standing, left to right, are Mission Specialists Gerhard Thiele of Germany and Mamoru Mohri of Japan, Commander Kevin Kregel (at the microphone), Mission Specialists Janice Voss and Janet Kavandi, and Pilot Dominic Gorie. They are ready to prepare for the second launch attempt of Endeavour Feb. 11 at 12:30 p.m. EST from Launch Pad 39A. The earlier launch scheduled for Jan. 31 was scrubbed due to poor weather and a faulty Enhanced Master Events Controller in the orbiter's aft compartment. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Landing is expected at KSC on Feb. 22 at 4:36 p.m. EST

After the crew arrival at KSC's Shuttle Landing Facility, STS-99 Mission Specialist Mamoru Mohri (Ph.D.), at right, talks to the media. At left is Mission Specialist Gerhard Thiele (Ph.D.). Thiele is with the European Space Agency and Mohri is with the National Space Development Agency (NASDA) of Japan. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety. Launch of Endeavour is scheduled for Jan. 31 at 12:47 p.m. EST

After the crew arrival at KSC's Shuttle Landing Facility, STS-99 Mission Specialist Mamoru Mohri (Ph.D.), at right, talks to the media. At left is Mission Specialist Gerhard Thiele (Ph.D.). Thiele is with the European Space Agency and Mohri is with the National Space Development Agency (NASDA) of Japan. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety. Launch of Endeavour is scheduled for Jan. 31 at 12:47 p.m. EST

The STS-99 crew pose for a photograph after their arrival at the Shuttle Landing Facility to prepare for launch. From left are Pilot Dominic Gorie, Mission Specialist Janice Voss (Ph.D.), Commander Kevin Kregel, and Mission Specialists Janet Lynn Kavandi (Ph.D.), Gerhard Thiele (Ph.D.) and Mamoru Mohri (Ph.D.). Thiele is with the European Space Agency and Mohri is with the National Space Development Agency (NASDA) of Japan. Behind them are the T-38 jets in which they arrived, and the mate/demate device. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety. Launch of Endeavour is scheduled for Jan. 31 at 12:47 p.m. EST

STS-99 Mission Specialist Gerhard P.J. Thiele (Ph.D.), with the European Space Agency, arrives at KSC aboard a T-38 jet aircraft to prepare for launch of Endeavour Jan. 31 at 12:47 p.m. EST. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety

STS-99 Mission Specialist Mamoru Mohri (Ph.D.), who is with the National Space Development Agency (NASDA) of Japan, waves on his arrival at KSC aboard a T-38 jet aircraft to prepare for launch of Endeavour Jan. 31 at 12:47 p.m. EST. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety

STS-99 Mission Specialist Mamoru Mohri (Ph.D.), who is with the National Space Development Agency (NASDA) of Japan, waves on his arrival at KSC aboard a T-38 jet aircraft to prepare for launch of Endeavour Jan. 31 at 12:47 p.m. EST. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety

STS-99 Mission Specialist Janet Lynn Kavandi (Ph.D.) looks surprised and happy after landing at KSC aboard a T-38 jet aircraft to prepare for launch of Endeavour Jan. 31 at 12:47 p.m. EST. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safet

STS-99 Mission Specialist Janet Lynn Kavandi (Ph.D.) looks surprised and happy after landing at KSC aboard a T-38 jet aircraft to prepare for launch of Endeavour Jan. 31 at 12:47 p.m. EST. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safet

STS-99 Mission Specialist Gerhard P.J. Thiele (Ph.D.), with the European Space Agency, arrives at KSC aboard a T-38 jet aircraft to prepare for launch of Endeavour Jan. 31 at 12:47 p.m. EST. Over the next few days, the crew will review mission procedures, conduct test flights in the Shuttle Training Aircraft and undergo routine preflight medical exams. STS-99 is the Shuttle Radar Topography Mission, which will chart a new course, using two antennae and a 200-foot-long section of space station-derived mast protruding from the payload bay to produce unrivaled 3-D images of the Earth's surface. The result of the Shuttle Radar Topography Mission could be close to 1 trillion measurements of the Earth's topography. Besides contributing to the production of better maps, these measurements could lead to improved water drainage modeling, more realistic flight simulators, better locations for cell phone towers, and enhanced navigation safety