Attendees view exhibits during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

Attendees view exhibits during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

Attendees view exhibits during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

Attendees view exhibits during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

Attendees view exhibits during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

Attendees view exhibits during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

Attendees view exhibits during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

Attendees view exhibits during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

S78-35301 (21 Sept 1978) --- Astronaut Terry J. Hart.

Acting NASA Administrator Sean Duffy delivers remarks during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

Acting NASA Administrator Sean Duffy delivers remarks during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

Acting NASA Administrator Sean Duffy delivers remarks during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Nick Hague speaks with attendees of NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Butch Wilmore speaks with attendees of NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

NASA astronaut Suni Williams speaks with attendees of NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

Heather Pringle, CEO of Space Foundation, gives remarks during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

U.S. Senator Jerry Moran, R-Kan., gives remarks during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

U.S. Senator Jerry Moran, R-Kan., gives remarks during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

U.S. Senator Jerry Moran, R-Kan., gives remarks during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

Astronauts Sally Ride and Terry Hart prepare for remote manipulator system (RMS) training for STS-2 in bldg 9A. Views include Ride, Hart and Robert R. Kain of the Flight Activites Branch reviewing procedures for RMS training (34262); Ride and Hart stand beside the RMS control center looking down at the payload bay mock-up (34263).

Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, appears before the Senate Committee on Commerce, Science, and Transportation, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Melroy is a former NASA astronaut. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine testifies before the Senate Committee on Commerce, Science, and Transportation during a hearing titled, “Moon to Mars: NASA’s Plans for Deep Space Exploration,” Wednesday, July 17, 2019, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, appears before the Senate Committee on Commerce, Science, and Transportation, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Melroy is a former NASA astronaut. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine testifies before the Senate Committee on Commerce, Science, and Transportation during a hearing titled, “Moon to Mars: NASA’s Plans for Deep Space Exploration,” Wednesday, July 17, 2019, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, appears before the Senate Committee on Commerce, Science, and Transportation, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Melroy is a former NASA astronaut. Photo Credit: (NASA/Bill Ingalls)

Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, appears before the Senate Committee on Commerce, Science, and Transportation, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Melroy is a former NASA astronaut. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine testifies before the Senate Committee on Commerce, Science, and Transportation during a hearing titled, “Moon to Mars: NASA’s Plans for Deep Space Exploration,” Wednesday, July 17, 2019, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, appears before the Senate Committee on Commerce, Science, and Transportation, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Melroy is a former NASA astronaut. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine testifies before the Senate Committee on Commerce, Science, and Transportation during a hearing titled, “Moon to Mars: NASA’s Plans for Deep Space Exploration,” Wednesday, July 17, 2019, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine testifies before the Senate Committee on Commerce, Science, and Transportation during a hearing titled, “Moon to Mars: NASA’s Plans for Deep Space Exploration,” Wednesday, July 17, 2019, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine testifies before the Senate Committee on Commerce, Science, and Transportation during a hearing titled, “Moon to Mars: NASA’s Plans for Deep Space Exploration,” Wednesday, July 17, 2019, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine testifies before the Senate Committee on Commerce, Science, and Transportation during a hearing titled, “Moon to Mars: NASA’s Plans for Deep Space Exploration,” Wednesday, July 17, 2019, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, appears before the Senate Committee on Commerce, Science, and Transportation, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Melroy is a former NASA astronaut. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine testifies before the Senate Committee on Commerce, Science, and Transportation during a hearing titled, “Moon to Mars: NASA’s Plans for Deep Space Exploration,” Wednesday, July 17, 2019, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine testifies before the Senate Committee on Commerce, Science, and Transportation during a hearing titled, “Moon to Mars: NASA’s Plans for Deep Space Exploration,” Wednesday, July 17, 2019, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

A hearing agenda is seen ahead of Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, appearing before the Senate Committee on Commerce, Science, and Transportation, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Melroy is a former NASA astronaut. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine testifies before the Senate Committee on Commerce, Science, and Transportation during a hearing titled, “Moon to Mars: NASA’s Plans for Deep Space Exploration,” Wednesday, July 17, 2019, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, appears before the Senate Committee on Commerce, Science, and Transportation, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Melroy is a former NASA astronaut. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine testifies before the Senate Committee on Commerce, Science, and Transportation during a hearing titled, “Moon to Mars: NASA’s Plans for Deep Space Exploration,” Wednesday, July 17, 2019, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine testifies before the Senate Committee on Commerce, Science, and Transportation during a hearing titled, “Moon to Mars: NASA’s Plans for Deep Space Exploration,” Wednesday, July 17, 2019, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, appears before the Senate Committee on Commerce, Science, and Transportation, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Melroy is a former NASA astronaut. Photo Credit: (NASA/Bill Ingalls)

Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, appears before the Senate Committee on Commerce, Science, and Transportation, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Melroy is a former NASA astronaut. Photo Credit: (NASA/Bill Ingalls)

Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, appears before the Senate Committee on Commerce, Science, and Transportation, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Melroy is a former NASA astronaut. Photo Credit: (NASA/Bill Ingalls)

Karen St. Germain, director of the Earth Science Division of NASA’s Science Mission Directorate, left, speaks with NASA Associate Administrator Amit Kshatriya during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

Karen St. Germain, director of the Earth Science Division of NASA’s Science Mission Directorate speaks with an attendee as he views exhibits during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

41C-05-180 (9 April 1984) --- Astronaut Terry J. Hart, 41-C mission specialist, holds a 70 pound IMAX camera in the middeck of the Earth orbiting Space Shuttle Challenger. The motion picture camera (65mm) handles 1,000 ft. rolls which have a running time of three minutes (24 frames per second). Hart, who used a black bag as a sort of in space darkroom for five film change outs throughout the flight, commented to ground controllers that the film magazines were much easier to reload in space than in the normal one G environment on Earth.

Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, appears before the Senate Committee on Commerce, Science, and Transportation, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Melroy is a former NASA astronaut. Photo Credit: (NASA/Bill Ingalls)

Karen St. Germain, director of the Earth Science Division of NASA’s Science Mission Directorate, center, speaks with Nicola Fox, associate administrator of NASA’s Science Mission Directorate, left, and NASA Associate Administrator Amit Kshatriya during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

Expedition 72 NASA astronauts Suni Williams, left, Don Pettit, Butch Wilmore, and Nick Hague, are seen as acting NASA Administrator Sean Duffy delivers remarks during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

Sen. Mark Kelly, D-Ariz., introduces Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, during a Senate Committee on Commerce, Science, and Transportation confirmation hearing, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Both Kelly and Melroy are former NASA astronauts. Photo Credit: (NASA/Bill Ingalls)

Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, center, Richard Spinrad to be under secretary of Commerce for Oceans and Atmosphere, right, and Carlos Monje, Jr. nominee to be the next under secretary of Transportation for Policy appear before the Senate Committee on Commerce, Science, and Transportation, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Melroy is a former NASA astronaut. Photo Credit: (NASA/Bill Ingalls)

Sen. Maria Cantwell, D-Wash., the Chair of the Senate Committee on Commerce, Science, and Transportation, listens as Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, testifies before the Senate Committee on Commerce, Science, and Transportation, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Melroy is a former NASA astronaut. Photo Credit: (NASA/Bill Ingalls)

Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, listens as Sen. Mark Kelly, D-Ariz., introduces her during a Senate Committee on Commerce, Science, and Transportation confirmation hearing, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Both Kelly and Melroy are former NASA astronauts. Photo Credit: (NASA/Bill Ingalls)

Sen. Mark Kelly, D-Ariz., listens after introducing Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, during a Senate Committee on Commerce, Science, and Transportation confirmation hearing, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Both Kelly and Melroy are former NASA astronauts. Photo Credit: (NASA/Bill Ingalls)

Pam Melroy, President Biden’s nominee to be the next deputy administrator of NASA, center, Richard Spinrad to be under secretary of Commerce for Oceans and Atmosphere, left, and Carlos Monje, Jr. nominee to be the next under secretary of Transportation for Policy appear before the Senate Committee on Commerce, Science, and Transportation, Thursday, May 20, 2021, at the Hart Senate Office Building in Washington. Melroy is a former NASA astronaut. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Don Pettit speaks with Trey Carlson, chief of staff for NASA’s Kennedy Space Center, left, John McCullough, deputy associate administrator for integration in NASA’s Exploration Systems Development Mission Directorate, and Janet Petro, director of NASA’s Kennedy Space Center during NASA’s Day on the Hill, Tuesday, Sept. 16, 2025, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Joel Kowsky)

Chairman Roger Wicker, R-Miss., left, and Ranking member Sen. Maria Cantwell, D-Wash., right listen as NASA Administrator Jim Bridenstine testifies before the Senate Committee on Commerce, Science, and Transportation during a hearing titled, “Moon to Mars: NASA’s Plans for Deep Space Exploration,” Wednesday, July 17, 2019, at the Hart Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

A general view of a hearing in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation regarding assured access to space on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC.

Robert Lightfoot, NASA Associate Administrator, answers a question during testimony in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

Robert Lightfoot, NASA Associate Administrator, answers a question during testimony in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

General William Sherlton, Commander of the United States Air Force Space Command, answers a question during testimony in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

General William Sherlton, Commander of the United States Air Force Space Command, answers a question during testimony in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

Robert Lightfoot, NASA Associate Administrator, third from left, answers a question during testimony in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

Sen. Ted Cruz, R-Texas, listens during testimony in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

Robert Lightfoot, NASA Associate Administrator, answers a question during testimony in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

Robert Lightfoot, NASA Associate Administrator, delivers his opening statement during a hearing in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

Sen. Mark Udall, D-CO, asks a question during a hearing in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

Howard Mitchell, Vice President of Program Assessments at The Aerospace Corporation, listens to opening statements during a hearing in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

Dr. Yool Kim, Senior Engineer at the Rand Corporation, delivers her opening statment during a hearing in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

Howard Mitchell, Vice President of Program Assessments at The Aerospace Corporation, delivers his opening statement during a hearing in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

Sen. Ted Cruz, R-Texas, asks a question during a hearing in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

The crew assigned to the STS-41CB (STS-13) mission included (left to right) Robert L. Crippen, commander; Terry J. Hart, mission specialist; James D. Van-Hoften, mission specialist; George D. Nelson, mission specialist; and Francis R. (Dick) Scobee, pilot. Launched aboard the Space Shuttle Challenger on April 6, 1984 at 8:58:00 am (EST), the STS-41C mission marked the first direct ascent trajectory for the Space Shuttle. The crew deployed the Long Duration Exposure Facility (LDEF).

jsc2020e031188 (7/11/2014) --- A preflight view of the Bioculture System inside an ExPRESS Rack Locker. The Bioculture System is a biological science incubator for use on the International Space Station (ISS) with the capability of transporting active and stored investigations to ISS. This incubator supports a wide diversity of tissue, cell, and microbiological cultures and experiment methods to meet any spaceflight research investigation goals and objectives. The facility enables variable duration and long-duration cellular and microbiological investigations on ISS to meet the scientific needs of academic and biotechnology interests. Credits: NASA / Dominic Hart

General William Shelton, Commander of the United States Air Force Space Command, delivers his opening statement during testimony in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

Cristina Chaplain, Director of Acquisition and Sourcing Management at the Government Accountability Office, delivers her opening statement during a hearing in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

General William Sherlton, Commander of the United States Air Force Space Command, left; answers a question during testimony in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

General William Shelton, Commander of the United States Air Force Space Command, second from right, answers a question during testimony in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

The Hon. Alan Estevez, Principle Deputy Under Secretary of Defense for Acquision, TEchnology, and Logitics, answers a question during testimony in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

jsc2020e031189 (8/8/2015) --- A preflight interior view of the incubator cassette from the Bioculture System. The Bioculture System is a biological science incubator for use on the International Space Station (ISS) with the capability of transporting active and stored investigations to ISS. This incubator supports a wide diversity of tissue, cell, and microbiological cultures and experiment methods to meet any spaceflight research investigation goals and objectives. The facility enables variable duration and long-duration cellular and microbiological investigations on ISS to meet the scientific needs of academic and biotechnology interests. Credits: NASA photo by Dominic Hart

Ames 70_year picture day on Flight line. Dominic Hart shooting photo's.

Ames 70_year picture day on Flight line. Dominic Hart shooting photo's.

Expedition 27 Flight Engineer Cady Coleman, center, is helped out of a Russian all terrain vehicle (ATV) by NASA Chief of the Astronaut Office, Peggy Whitson and directed to the helicopter by NASA Flight Surgeon Steve Hart, left, shortly after she and Commander Dmitry Kondratyev and Flight Engineer Paolo Nespoli landed in their Soyuz TMA-20 southeast of the town of Zhezkazgan, Kazakhstan, on Tuesday, May 24, 2011. NASA Astronaut Coleman, Russian Cosmonaut Kondratyev and Italian Astronaut Nespoli are returning from more than five months onboard the International Space Station where they served as members of the Expedition 26 and 27 crews. Photo Credit: (NASA/Bill Ingalls)

From left; Hon. Alan Estevez, Principle Deputy Under Secretary of Defense for Acquisition, Technology, and Logistics; General William Shelton, Commander of the United States Air Force Space Command; Robert Lightfoot, NASA Associate Administrator; Cristina Chaplain, Director of Acquisition and Sourcing Management at the Government Accountability Office; major General Howard Mitchell (USAF Ret.), Vice President for Program Assessments at The Aerospace Corporation; Daniel Dunbacher, Professor of Practice in the Department of Aeronautics and Aerospace Engineering at Purdue University; and Dr. Yool Kim, Senior Engineer at The Rand Corporation; are seen during a hearing in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

From left; Hon. Alan Estevez, Principle Deputy Under Secretary of Defense for Acquisition, Technology, and Logistics; General William Shelton, Commander of the United States Air Force Space Command; Robert Lightfoot, NASA Associate Administrator; Cristina Chaplain, Director of Acquisition and Sourcing Management at the Government Accountability Office; major General Howard Mitchell (USAF Ret.), Vice President for Program Assessments at The Aerospace Corporation; Daniel Dunbacher, Professor of Practice in the Department of Aeronautics and Aerospace Engineering at Purdue University; and Dr. Yool Kim, Senior Engineer at The Rand Corporation; are seen during a hearing in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

From left; Hon. Alan Estevez, Principle Deputy Under Secretary of Defense for Acquisition, Technology, and Logistics; General William Shelton, Commander of the United States Air Force Space Command; Robert Lightfoot, NASA Associate Administrator; Cristina Chaplain, Director of Acquisition and Sourcing Management at the Government Accountability Office; major General Howard Mitchell (USAF Ret.), Vice President for Program Assessments at The Aerospace Corporation; Daniel Dunbacher, Professor of Practice in the Department of Aeronautics and Aerospace Engineering at Purdue University; and Dr. Yool Kim, Senior Engineer at The Rand Corporation; are seen during a hearing in front of the Senate Subcommittee on Strategic Forces and Senate Committee on Commerce, Science, and Transportation on Wednesday, July 16, 2014, at the Hart Senate Office Building in Washington, DC. The Senate hearing focused on assured access to space.

jsc2020e008566 (12/31/2013) --- Lockheed Martin engineer Robert Benzio conducts a fit check with two Rodent Research modules at NASA's Ames Research Center in Moffett Field, California. The Rodent Research Facility provides rodent housing on board the International Space Station (ISS). Animal research is essential for understanding the impacts of spaceflight on the systems of the human body, and for development of potential therapies that will ease harmful responses to space flight. Credits: NASA/Dominic Hart

jsc2020e008565 (12/27/2013) --- NASA’s Rodent Habitat module with both access doors open. The Rodent Research Facility provides rodent housing on board the International Space Station (ISS). Animal research is essential for understanding the impacts of spaceflight on the systems of the human body, and for development of potential therapies that will ease harmful responses to space flight. Credits: NASA/Dominic Hart

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

Angela Hart, Manager of the Mission Management and Integration Office of NASA’s Commercial Crew Program, monitors the countdown of the launch attempt of a SpaceX Falcon 9 rocket carrying the company's Crew Dragon spacecraft on NASA’s SpaceX Demo-2 mission with NASA astronauts Robert Behnken and Douglas Hurley onboard, Wednesday, May 27, 2020, in firing room four of the Launch Control Center at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Demo-2 mission is the first launch with astronauts of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. The test flight serves as an end-to-end demonstration of SpaceX’s crew transportation system. Today’s launch of Behnken and Hurley was scrubbed due to weather and is now scheduled for 3:22 p.m. EDT on Saturday, May 30, from Launch Complex 39A at the Kennedy Space Center. A new era of human spaceflight is set to begin as American astronauts once again launch on an American rocket from American soil to low-Earth orbit for the first time since the conclusion of the Space Shuttle Program in 2011. Photo Credit: (NASA/Joel Kowsky)

Hart ROTORCRAFT AND POWERED LIFT BRANCH PERSONNEL (CODE AFR) N-211 WITH HARRIER. VSRA RESEARCH TEAM - Front row, L-R: Dave Walton, Seth Kurasaki, Bill Laurie, Jim Ahlman, Nels Watz, Del mWatson, Terry Stoeffler, Linda Blyskal, Ed Hess, Manuel Irizarry, Mike Stortz, Bruce Gallmeyer. Second row, L-R: Dave Nishikawa, Stan Uyeda, Trudy Schlaich, Tom Kaisersatt, John Foster, Nick Rediess, Kent Shiffer, Paul Borchers, Mike Casey, Sterling Smith, Charlie Hynes, Vern Merrick, Jack Franklin. Back row, L-R: Thad Frazier, Eric Weirshauser, Steve Timmons, Brian Hookland, Joe Paz, Kent Christensen, Jack Trapp, Bill Bjorkman, Ernesto Moralez, Joe Konecni. Note: Used in publication in Flight Research at Ames; 57 Years of Development and Validation of Aeronautical Technology NASA SP-1998-3300 fig. 126

41C-3061 (6 April 1984) --- The five-member astronauts crew for NASA's STS-41C Space Shuttle mission head for the transfer van that will transport them to Launch Pad 39B at the Kennedy Space Center. Astronaut Robert L. Crippen, commander, leads the way. Immediately behind Crippen is Astronaut Francis R. (Dick) Scobee, pilot. The three mission specialists are (left to right) Astronauts Terry J. Hart, George D. Nelson and James D. van Hoften. The photograph was taken by Otis Imobden.

Jeremy Hart, Integrated Performance Chief Engineer for NASA's Commercial Crew Program, center, speaks with Nicole Jordan, NASA operations manager for the Commercial Crew Program, left, and Kevin Vega, Commercial Crew Program Chief Engineer, as teams monitor the countdown of a launch attempt of a SpaceX Falcon 9 rocket carrying the company's Dragon spacecraft on NASA’s SpaceX Crew-11 mission with NASA astronauts Zena Cardman, Mike Fincke, JAXA (Japan Aerospace Exploration Agency) astronaut Kimiya Yui, and Roscosmos cosmonaut Oleg Platonov onboard, Thursday, July 31, 2025, in the control center of SpaceX’s HangarX at NASA’s Kennedy Space Center in Florida. NASA’s SpaceX Crew-11 mission is the eleventh 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. Today’s launch of Cardman, Fincke, Yui, Platonov was scrubbed due to weather and is now scheduled for 11:43 a.m. EDT on Friday, August 1, from Launch Complex 39A at the NASA's Kennedy Space Center. Photo Credit: (NASA/Joel Kowsky)

A 16mm film frame shows convective regions inside silicone oil playing the part of a stellar atmosphere in the Geophysical Fluid Flow Cell (GFFC). An electrostatic field pulled the oil inward to mimic gravity's effects during the experiments. The GFFC thus produced flow patterns that simulated conditions inside the atmospheres of Jupiter and the Sun and other stars. Numbers of the frame indicate temperatures and other conditions. This image is from the Spacelab-3 flight in 1985. GFFC was reflown on U.S. Microgravity Laboratory-2 in 1995. The principal investigator was John Hart of the University of Colorado at Boulder. It was managed by NASA's Marshall Space Flight Center. (Credit: NASA/Marshall Space Flight Center)

A steel hemisphere was at the core of the Geophysical Fluid Flow Cell (GFFC) that flew on two Spacelab missions. It was capped by a sapphire dome. Silicone oil between the two played the part of a steller atmosphere. An electrostatic field pulled the oil inward to mimic gravity's effects during the experiments. The GFFC thus produced flow patterns that simulated conditions inside the atmospheres of Jupiter and the Sun and other stars. GFFC flew on Spacelab-3 in 1985 and U.S. Microgravity Laboratory-2 in 1995. The principal investigator was John Hart of the University of Colorado at Boulder. It was managed by NASA's Marshall Space Flight Center. (Credit: NASA/Marshall Space Flight Center)

The ribbon is cut and the new Checkout and Launch Control System (CLCS) declared operational. Those taking part in the ceremony are (from left) Joseph Rothenberg, NASA Associate Administrator for Space Flight; Pam Gillespie, from Rep. Dave Weldon's office; Roy Bridges, Kennedy Space Center director; Dave King, director of Shuttle Processing; Retha Hart, deputy associate director, Spaceport Technology Management Office; and Ron Dittemore, manager, Space Shuttle Program. The new control room will be used to process the Orbital Maneuvering System pods and Forward Reaction Control System modules at the HMF. This hardware is removed from Space Shuttle orbiters and routinely taken to the HMF for checkout and servicing

This composite image depicts one set of flow patterns simulated in the Geophysical Fluid Flow Cell (GFFC) that flew on two Spacelab missions. Silicone oil served as the atmosphere around a rotating steel hemisphere (dotted circle) and an electrostatic field pulled the oil inward to mimic gravity's effects during the experiments. The GFFC thus produced flow patterns that simulated conditions inside the atmospheres of Jupiter and the Sun and other stars. GFFC flew on Spacelab-3 in 1985 and U.S. Microgravity Laboratory-2 in 1995. The principal investigator was John Hart of the University of Colorado at Boulder. It was managed by NASA's Marshall Space Flight Center. (Credit: NASA/Marshall Space Flight Center)

41C-07-262 (6-13 April 1984) --- Automatic exposure on a stationary 35mm camera recorded this "team" photograph of the 41-C astronauts at the aft flight deck of the Earth orbiting Challenger. Astronauts Robert L. Crippen, right, crew commander; and Francis R. (Dick) Scobee, left, pilot, flank the mission specialists--(l-r) George D. Nelson, James D. van Hoften and Terry J. Hart. This picture was among 20 frames of 41-C photography released by NASA on the weekend following the April 13 landing at Edwards Air Force Base and it was used as one of the visuals at the April 24 post-flight press conference. .

The ribbon is cut and the new Checkout and Launch Control System (CLCS) declared operational. Those taking part in the ceremony are (from left) Joseph Rothenberg, NASA Associate Administrator for Space Flight; Pam Gillespie, from Rep. Dave Weldon's office; Roy Bridges, Kennedy Space Center director; Dave King, director of Shuttle Processing; Retha Hart, deputy associate director, Spaceport Technology Management Office; and Ron Dittemore, manager, Space Shuttle Program. The new control room will be used to process the Orbital Maneuvering System pods and Forward Reaction Control System modules at the HMF. This hardware is removed from Space Shuttle orbiters and routinely taken to the HMF for checkout and servicing

This drawing depicts one set of flow patterns simulated in the Geophysical Fluid Flow Cell (GFFC) that flew on two Spacelab missions. Silicone oil served as the atmosphere around a rotating steel hemisphere (dotted circle) and an electrostatic field pulled the oil inward to mimic gravity's effects during the experiments. The GFFC thus produced flow patterns that simulated conditions inside the atmospheres of Jupiter and the Sun and other stars. The principal investigator was John Hart of the University of Colorado at Boulder. It was managed by NASA's Marshall Space Flight Center (MSFC). An Acrobat PDF copy of this drawing is available at http://microgravity.nasa.gov/gallery. (Credit: NASA/Marshall Space Flight Center)

CAPE CANAVERAL, Fla. -- At NASA's Kennedy Space Center's Launch Pad 39-A, the school bus-sized Long Duration Exposure Facility LDEF containing 57 active and passive experiments from nine nations has been loaded into the payload bay of the space shuttle Challenger. The view from the Payload Change-out Room shows LDEF which will be deployed in orbit at an altitude of nearly 300 miles and retrieved after nearly a year so that the experimenters may analyze the effects of long term exposure to space on various substances and processes. The five-member STS-41C crew for this flight is headed by veteran astronaut Robert Crippen on his third space shuttle flight, and includes space rookies, pilot Dick Scobee and mission specialists Terry Hart, George Nelson and James van Hoften. Photo Credit: NASA