Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, a quality technician checks the hardware for the Advanced Plant Habitat flight unit. The flight unit is an exact replica of the APH that was delivered to the International Space Station. Validation tests and post-delivery checkout was performed to prepare for space station in-orbit APH activities. The flight unit will be moved to the International Space Station Environmental Simulator to begin an experiment verification test for the science that will fly on the first mission, PH-01. Developed by NASA and ORBITEC of Madison, Wisconsin, the APH is the largest plant chamber built for the agency. It is a fully automated plant growth facility that will be used to conduct bioscience research on the space station.

Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, quality technicians check the hardware for the Advanced Plant Habitat flight unit. The flight unit is an exact replica of the APH that was delivered to the International Space Station. Validation tests and post-delivery checkout was performed to prepare for space station in-orbit APH activities. The flight unit will be moved to the International Space Station Environment Simulator to begin an experiment verification test for the science that will fly on the first mission, PH-01. Developed by NASA and ORBITEC of Madison, Wisconsin, the APH is the largest plant chamber built for the agency. It is a fully automated plant growth facility that will be used to conduct bioscience research on the space station.

Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, quality technicians check components of the hardware for the Advanced Plant Habitat flight unit. The flight unit is an exact replica of the APH that was delivered to the International Space Station. Validation tests and post-delivery checkout was performed to prepare for space station in-orbit APH activities. The flight unit will be moved to the International Space Station Environmental Simulator to begin an experiment verification test for the science that will fly on the first mission, PH-01. Developed by NASA and ORBITEC of Madison, Wisconsin, the APH is the largest plant chamber built for the agency. It is a fully automated plant growth facility that will be used to conduct bioscience research on the space station.

Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, quality technicians check the hardware for the Advanced Plant Habitat flight unit. The flight unit is an exact replica of the APH that was delivered to the International Space Station. Validation tests and post-delivery checkout was performed to prepare for space station in-orbit APH activities. The flight unit will be moved to the International Space Station Environmental Simulator to begin an experiment verification test for the science that will fly on the first mission, PH-01. Developed by NASA and ORBITEC of Madison, Wisconsin, the APH is the largest plant chamber built for the agency. It is a fully automated plant growth facility that will be used to conduct bioscience research on the space station.

Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, a quality technician checks the hardware for the Advanced Plant Habitat flight unit. The flight unit is an exact replica of the APH that was delivered to the International Space Station. Validation tests and post-delivery checkout was performed to prepare for space station in-orbit APH activities. The flight unit will be moved to the International Space Station Environmental Simulator to begin an experiment verification test for the science that will fly on the first mission, PH-01. Developed by NASA and ORBITEC of Madison, Wisconsin, the APH is the largest plant chamber built for the agency. It is a fully automated plant growth facility that will be used to conduct bioscience research on the space station.

Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, a quality technician checks the control panel on hardware for the Advanced Plant Habitat flight unit. The flight unit is an exact replica of the APH that was delivered to the International Space Station. Validation tests and post-delivery checkout was performed to prepare for space station in-orbit APH activities. The flight unit will be moved to the International Space Station Environmental Simulator to begin an experiment verification test for the science that will fly on the first mission, PH-01. Developed by NASA and ORBITEC of Madison, Wisconsin, the APH is the largest plant chamber built for the agency. It is a fully automated plant growth facility that will be used to conduct bioscience research on the space station.

Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, LED plant growth lights are being checked out on the hardware for the Advanced Plant Habitat flight unit. The flight unit is an exact replica of the APH that was delivered to the International Space Station. Validation tests and post-delivery checkout was performed to prepare for space station in-orbit APH activities. The flight unit will be moved to the International Space Station Environmental Simulator to begin an experiment verification test for the science that will fly on the first mission, PH-01. Developed by NASA and ORBITEC of Madison, Wisconsin, the APH is the largest plant chamber built for the agency. It is a fully automated plant growth facility that will be used to conduct bioscience research on the space station.

Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, LED plant growth lights are being checked out on the hardware for the Advanced Plant Habitat flight unit. The flight unit is an exact replica of the APH that was delivered to the International Space Station. Validation tests and post-delivery checkout was performed to prepare for space station in-orbit APH activities. The flight unit will be moved to the International Space Station Environmental Simulator to begin an experiment verification test for the science that will fly on the first mission, PH-01. Developed by NASA and ORBITEC of Madison, Wisconsin, the APH is the largest plant chamber built for the agency. It is a fully automated plant growth facility that will be used to conduct bioscience research on the space station.

From left, Wayne Arrington, a Boeing Company technician, and Steve Presti, a mechanical technician at NASA's Marshall Space Flight Center in Huntsville, Ala., install Developmental Flight Instrumentation Data Acquisition Units in Marshall's Systems Integration and Test Facility. The units are part of NASA's Space Launch System (SLS) core stage avionics, which will guide the biggest, most powerful rocket in history to deep space missions. When completed, the core stage will be more than 200 feet tall and store cryogenic liquid hydrogen and liquid oxygen that will feed the vehicle's RS-25 engines. The hardware, software and operating systems for the SLS are arranged in flight configuration in the facility for testing. The new Data Acquisition Units will monitor vehicle behavior in flight -- like acceleration, thermal environments, shock and vibration. That data will then be used to validate previous ground tests and analyses models that were used in the development of the SLS vehicle.

STS008-18-479 (5 Sept 1983) --- Aft flight deck documentation includes on orbit station with control panel A2, aft viewing window W9, and communications kit assembly (ASSY) headset (HDST) interface unit (HIU) and cable free floating in front of it.

The Atlas V rocket that will launch Boeing’s CST-100 Starliner spacecraft on the company’s uncrewed Orbital Flight Test for NASA’s Commercial Crew Program is coming together inside a United Launch Alliance facility in Decatur, Alabama. The flight test is intended to prove the design of the integrated space system prior to the Crew Flight Test. These events are part of NASA’s required certification process as the company works to regularly fly astronauts to and from the International Space Station. Boeing's Starliner will launch on the United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida.

The Atlas V rocket that will launch Boeing’s CST-100 Starliner spacecraft on the company’s uncrewed Orbital Flight Test for NASA’s Commercial Crew Program is coming together inside a United Launch Alliance facility in Decatur, Alabama. The flight test is intended to prove the design of the integrated space system prior to the Crew Flight Test. These events are part of NASA’s required certification process as the company works to regularly fly astronauts to and from the International Space Station. Boeing's Starliner will launch on the United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida.

NASA Evolutionary Xenon Thruster - Commercial, NEXT-C Flight Power Processing Unit, PPU

NASA Evolutionary Xenon Thruster - Commercial, NEXT-C Flight Power Processing Unit, PPU

NASA Evolutionary Xenon Thruster - Commercial, NEXT-C Flight Power Processing Unit, PPU

NASA Evolutionary Xenon Thruster - Commercial, NEXT-C Flight Power Processing Unit, PPU

NASA Evolutionary Xenon Thruster - Commercial, NEXT-C Flight Power Processing Unit, PPU

NASA Evolutionary Xenon Thruster - Commercial, NEXT-C Flight Power Processing Unit, PPU

Tory Bruno, president and CEO of United Launch Alliance, listens during a briefing at NASA’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

John Elbon, chief operating officer, United Launch Alliance, speaks during a prelaunch briefing for Boeing’s Orbital Flight Test at the agency’s Kennedy Space Center in Florida, Dec. 17, 2019. Boeing’s CST-100 Starliner spacecraft will launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test will be the Starliner’s first flight to the International Space Station for NASA’s Commercial Crew Program.

Tory Bruno, president and chief executive officer of United Launch Alliance, left, and NASA Administrator Jim Bridenstine watch the launch of a United Launch Alliance Atlas V rocket carrying Boeing’s CST-100 Starliner spacecraft for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST from Space Launch Complex 41 at Florida’s Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Tory Bruno, president and CEO of United Launch Alliance, speaks during a briefing at NASA’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Officials from NASA, Boeing, United Launch Alliance and the U.S. Air Force 45th Weather Squadron participate in a prelaunch briefing for Boeing’s Orbital Flight Test at the agency’s Kennedy Space Center in Florida, Dec. 17, 2019. From left are Kathy Lueders, NASA Commercial Crew Program; John Mulholland, vice president and program manager, Boeing Commercial Crew Program; and John Elbon, chief operating officer, United Launch Alliance. Boeing’s CST-100 Starliner spacecraft will launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test will be the Starliner’s first flight to the International Space Station for NASA’s Commercial Crew Program.

Officials from NASA, Boeing and United Launch Alliance participate in a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. From left to right are Bettina Inclan, NASA Communications; NASA astronauts Mike Fincke and Nicole Mann; Jim Bridenstine, NASA Administrator; Tory Bruno, President and CEO, United Launch Alliance; Jim Chilton, Boeing senior vice president, Space and Launch Division; Steve Stich, deputy manager, NASA Commercial Crew Program; and Kirk Shireman, manager, International Space Station Program. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Officials from NASA, Boeing and United Launch Alliance participate in a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. From left to right are Jim Bridenstine, NASA Administrator; Tory Bruno, president and CEO, United Launch Alliance; Jim Chilton, Boeing senior vice president, Space and Launch Division; Steve Stich, deputy manager, NASA Commercial Crew Program; and Kirk Shireman, manager of NASA’s International Space Station Program. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Officials from NASA, Boeing and United Launch Alliance participate in a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. From left to right are Bettina Inclan, NASA Communications; NASA astronauts Mike Fincke and Nicole Mann; Jim Bridenstine, NASA Administrator; Tory Bruno, President and CEO, United Launch Alliance; Jim Chilton, Boeing senior vice president, Space and Launch Division; Steve Stich, deputy manager, NASA Commercial Crew Program; and Kirk Shireman, manager, International Space Station Program. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Officials from NASA, Boeing and United Launch Alliance participate in a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. From left to right are NASA astronauts Mike Fincke and Nicole Mann; Jim Bridenstine, NASA Administrator; Tory Bruno, President and CEO, United Launch Alliance; Jim Chilton, Boeing senior vice president, Space and Launch Division; Steve Stich, deputy manager, NASA Commercial Crew Program; and Kirk Shireman, manager, International Space Station Program. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Officials from NASA, Boeing, United Launch Alliance and the U.S. Air Force 45th Weather Squadron participate in a prelaunch briefing for Boeing’s Orbital Flight Test at the agency’s Kennedy Space Center in Florida, Dec. 17, 2019. From left are John Elbon, chief operating officer, United Launch Alliance; Joel Montalbano, deputy manager, International Space Station Program; Pat Forrester, Astronaut Office chief, Johnson Space Center; and Will Ulrich, launch weather officer, 45th Weather Squadron. Boeing’s CST-100 Starliner spacecraft will launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test will be the Starliner’s first flight to the International Space Station for NASA’s Commercial Crew Program.

Officials from NASA, Boeing, United Launch Alliance and the U.S. Air Force 45th Weather Squadron participate in a prelaunch briefing for Boeing’s Orbital Flight Test at the agency’s Kennedy Space Center in Florida, Dec. 17, 2019. From left are John Mulholland, vice president and program manager, Boeing Commercial Crew Program; John Elbon, chief operating officer, United Launch Alliance; Joel Montalbano, deputy manager, International Space Station Program; Pat Forrester, Astronaut Office chief, Johnson Space Center; and Will Ulrich, launch weather officer, 45th Weather Squadron. Boeing’s CST-100 Starliner spacecraft will launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test will be the Starliner’s first flight to the International Space Station for NASA’s Commercial Crew Program.

In the foreground, from left to right, Florida Governor Ron DeSantis; Tory Bruno, president and chief executive officer of United Launch Alliance; and NASA Administrator Jim Bridenstine watch the launch of a United Launch Alliance Atlas V rocket carrying Boeing’s CST-100 Starliner spacecraft for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST from Space Launch Complex 41 at Florida’s Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

NASA Administrator Jim Bridenstine, left, and Tory Bruno, president and chief executive officer of United Launch Alliance, wait at NASA’s Kennedy Space Center in Florida to see the liftoff of a United Launch Alliance Atlas V rocket carrying Boeing’s CST-100 Starliner spacecraft for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST from Space Launch Complex 41 at Florida’s Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

NASA Administrator Jim Bridenstine speaks during a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Beside him are NASA astronaut Nicole Mann, left, and Tory Bruno, president and CEO of United Launch Alliance. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Tory Bruno, president and chief executive officer of United Launch Alliance, left, and NASA Administrator Jim Bridenstine wait at NASA’s Kennedy Space Center in Florida to see the liftoff of a United Launch Alliance Atlas V rocket carrying Boeing’s CST-100 Starliner spacecraft for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST from Space Launch Complex 41 at Florida’s Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

NASA astronaut Mike Fincke, left, speaks during a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Beside him are NASA astronaut Nicole Mann; Jim Bridenstine, NASA Administrator; and Tory Bruno, president and CEO, United Launch Alliance. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

NASA Administrator Jim Bridenstine, left, and Tory Bruno, president and chief executive officer of United Launch Alliance, wait at NASA’s Kennedy Space Center in Florida to see the liftoff of a United Launch Alliance Atlas V rocket carrying Boeing’s CST-100 Starliner spacecraft for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST from Space Launch Complex 41 at Florida’s Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

From left to right, NASA Administrator Jim Bridenstine; Tory Bruno, president and chief executive officer of United Launch Alliance; and Florida Governor Ron DeSantis wait at NASA’s Kennedy Space Center in Florida to see the liftoff of a United Launch Alliance Atlas V rocket carrying Boeing’s CST-100 Starliner spacecraft for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST from Space Launch Complex 41 at Florida’s Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

In the foreground, from left to right, Florida Governor Ron DeSantis; Tory Bruno, president and chief executive officer of United Launch Alliance; and NASA Administrator Jim Bridenstine watch the launch of a United Launch Alliance Atlas V rocket carrying Boeing’s CST-100 Starliner spacecraft for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST from Space Launch Complex 41 at Florida’s Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

NASA Evolutionary Xenon Thruster - Commercial, NEXT-C Flight Power Processing Unit, PPU

NASA Evolutionary Xenon Thruster - Commercial, NEXT-C Flight Power Processing Unit, PPU

NASA Evolutionary Xenon Thruster - Commercial, NEXT-C Flight Power Processing Unit, PPU

NASA Evolutionary Xenon Thruster - Commercial, NEXT-C Flight Power Processing Unit, PPU

NASA Evolutionary Xenon Thruster - Commercial, NEXT-C Flight Power Processing Unit, PPU

NASA Evolutionary Xenon Thruster - Commercial, NEXT-C Flight Power Processing Unit, PPU

NASA Evolutionary Xenon Thruster - Commercial, NEXT-C Flight Power Processing Unit, PPU

NASA Evolutionary Xenon Thruster - Commercial, NEXT-C Flight Power Processing Unit, PPU

NASA Evolutionary Xenon Thruster - Commercial, NEXT-C Flight Power Processing Unit, PPU

iss069e003933 (April 17, 2023) --- UAE (United Arab Emirates) astronaut and Expedition 69 Flight Engineer Sultan Alneyadi prepares an Extravehicular Mobility Unit, or spacesuit, inside the International Space Station's Quest airlock for an upcoming spacewalk.

KENNEDY SPACE CENTER, FLA. - A technician with United Space Alliance checks wiring in the mid-body and flight deck of orbiter Atlantis as part of routine maintenance.

KENNEDY SPACE CENTER, FLA. - A technician with United Space Alliance checks wiring in the mid-body and flight deck of orbiter Atlantis as part of routine maintenance.

KENNEDY SPACE CENTER, FLA. - A technician with United Space Alliance checks wiring in the mid-body and flight deck of orbiter Atlantis as part of routine maintenance.

Jim Chilton, Boeing senior vice president, Space and Launch Division, speaks during a briefing at NASA’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. From left to right are Jim Bridenstine, NASA Administrator; Tory Bruno, president and CEO, United Launch Alliance; Chilton; and Steve Stich, deputy manager, NASA Commercial Crew Program. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Jim Chilton, Boeing senior vice president, Space and Launch Division, speaks during a briefing at NASA’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. From left to right are Jim Bridenstine, NASA Administrator; Tory Bruno, president and CEO, United Launch Alliance; Chilton; Steve Stich, deputy manager, NASA Commercial Crew Program; and Kirk Shireman, manager of NASA’s International Space Station Program. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Kathy Lueders, NASA Commercial Crew Program, speaks during a prelaunch briefing for Boeing’s Orbital Flight Test at the agency’s Kennedy Space Center in Florida, Dec. 17, 2019. Boeing’s CST-100 Starliner spacecraft will launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test will be the Starliner’s first flight to the International Space Station for NASA’s Commercial Crew Program.

Florida Governor Ron DeSantis speaks to invited guests at NASA’s Kennedy Space Center in Florida during a prelaunch briefing for Boeing’s uncrewed Orbital Flight Test, Dec. 20, 2019. A United Launch Alliance Atlas V rocket carrying Boeing’s CST-100 Starliner spacecraft launched at 6:36 a.m. EST from Space Launch Complex 41 at Florida’s Cape Canaveral Air Force Station. The Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

News media cover a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

NASA Administrator Jim Bridenstine speaks during a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

NASA astronaut Mike Fincke listens during a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Steve Stich, deputy manager, NASA Commercial Crew Program, listens during a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Pat Forrester, Astronaut Office chief, Johnson Space Center, speaks during a prelaunch briefing for Boeing’s Orbital Flight Test at the agency’s Kennedy Space Center in Florida, Dec. 17, 2019. Boeing’s CST-100 Starliner spacecraft will launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test will be the Starliner’s first flight to the International Space Station for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

NASA astronaut Nicole Mann listens during a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Will Ulrich, launch weather officer, 45th Weather Squadron, speaks during a prelaunch briefing for Boeing’s Orbital Flight Test at the agency’s Kennedy Space Center in Florida, Dec. 17, 2019. Boeing’s CST-100 Starliner spacecraft will launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test will be the Starliner’s first flight to the International Space Station for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Kirk Shireman, manager of NASA’s International Space Station Program, listens during a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Jim Chilton, Boeing senior vice president, Space and Launch Division, listens during a briefing at NASA’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Boeing astronaut Chris Ferguson speaks to invited guests at NASA’s Kennedy Space Center in Florida during a prelaunch briefing for Boeing’s uncrewed Orbital Flight Test, Dec. 20, 2019. A United Launch Alliance Atlas V rocket carrying Boeing’s CST-100 Starliner spacecraft launched at 6:36 a.m. EST from Space Launch Complex 41 at Florida’s Cape Canaveral Air Force Station. The Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Joel Montalbano, deputy manager, International Space Station Program, speaks during a prelaunch briefing for Boeing’s Orbital Flight Test at the agency’s Kennedy Space Center in Florida, Dec. 17, 2019. Boeing’s CST-100 Starliner spacecraft will launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test will be the Starliner’s first flight to the International Space Station for NASA’s Commercial Crew Program.

Kirk Shireman, manager of NASA’s International Space Station Program, speaks during a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight to the International Space Station for NASA’s Commercial Crew Program.

A two-stage United Launch Alliance Atlas V rocket lifts off from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida for Boeing’s Orbital Flight Test, Dec. 20, 2019. Liftoff occurred at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

NASA Administrator Jim Bridenstine speaks to invited guests at NASA’s Kennedy Space Center in Florida during a prelaunch briefing for Boeing’s uncrewed Orbital Flight Test, Dec. 20, 2019. A United Launch Alliance Atlas V rocket carrying Boeing’s CST-100 Starliner spacecraft launched at 6:36 a.m. EST from Space Launch Complex 41 at Florida’s Cape Canaveral Air Force Station. The Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Officials from NASA, Boeing, United Launch Alliance and the U.S. Air Force 45th Weather Squadron participate in a prelaunch briefing for Boeing’s Orbital Flight Test at the agency’s Kennedy Space Center in Florida, Dec. 17, 2019. From left to right are Marie Lewis, NASA Communications; Kathy Lueders, NASA Commercial Crew Program; John Mulholland, vice president and program manager, Boeing Commercial Crew Program; John Elbon, chief operating officer, United Launch Alliance; Joel Montalbano, deputy manager, International Space Station Program; Pat Forrester, Astronaut Office chief, Johnson Space Center; and Will Ulrich, launch weather officer, 45th Weather Squadron. Boeing’s CST-100 Starliner spacecraft will launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test will be the Starliner’s first flight to the International Space Station for NASA’s Commercial Crew Program.

Officials from NASA, Boeing, United Launch Alliance and the U.S. Air Force 45th Weather Squadron participate in a prelaunch briefing for Boeing’s Orbital Flight Test at the agency’s Kennedy Space Center in Florida, Dec. 17, 2019. From left to right are Marie Lewis, NASA Communications; Kathy Lueders, NASA Commercial Crew Program; John Mulholland, vice president and program manager, Boeing Commercial Crew Program; John Elbon, chief operating officer, United Launch Alliance; Joel Montalbano, deputy manager, International Space Station Program; Pat Forrester, Astronaut Office chief, Johnson Space Center; and Will Ulrich, launch weather officer, 45th Weather Squadron. Boeing’s CST-100 Starliner spacecraft will launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test will be the Starliner’s first flight to the International Space Station for NASA’s Commercial Crew Program.

Kathy Lueders, NASA Commercial Crew Program, at left, and John Mulholland, vice president and program manager, Boeing Commercial Crew Program, speak during a prelaunch briefing for Boeing’s Orbital Flight Test at the agency’s Kennedy Space Center in Florida, Dec. 17, 2019. Boeing’s CST-100 Starliner spacecraft will launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The uncrewed Orbital Flight Test will be the Starliner’s first flight to the International Space Station for NASA’s Commercial Crew Program.

NASA astronaut Nicole Mann speaks during a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Beside her are NASA astronaut Mike Fincke, left, and NASA Administrator Jim Bridenstine. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Steve Stich, deputy manager, NASA Commercial Crew Program, speaks during a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Beside him are Jim Chilton, Boeing senior vice president, Space and Launch Division, left, and Kirk Shireman, manager of NASA’s International Space Station Program. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

S84-37532 (18 July 1984) --? Robert B. Thirsk, backup payload specialist for 41-G appears to be shaking hands with an unoccupied extravehicular mobility unit (EMU) during a familiarization flight aboard NASA?s KC-135 aircraft. Thirsk, representing Canada?s National Research Council (NRC), serves as backup to Marc Garneau on the seven-member crew for Challenger?s October 1984 flight. This aircraft is used extensively for training and exposing Shuttle crewmembers to weightlessness as well as for evaluation of equipment and experiments scheduled for future flights.

NASA astronaut Nicole Mann speaks during a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Beside her are NASA astronaut Mike Fincke, left, and NASA Administrator Jim Bridenstine. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

Steve Stich, deputy manager, NASA Commercial Crew Program, speaks during a briefing at the agency’s Kennedy Space Center in Florida following launch of Boeing’s Orbital Flight Test, Dec. 20, 2019. Beside him are Jim Chilton, Boeing senior vice president, Space and Launch Division, left, and Kirk Shireman, manager of NASA’s International Space Station Program. Boeing’s CST-100 Starliner spacecraft launched atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station at 6:36 a.m. EST. The uncrewed Orbital Flight Test is the Starliner’s first flight for NASA’s Commercial Crew Program.

KENNEDY SPACE CENTER, FLA. - In the Orbiter Processing Facility, United Space Alliance technician Jamie Haynes does a gap test on the tiles of the nose of orbiter Atlantis as part of return-to-flight activities. Atlantis is scheduled for mission STS-114, a return-to-flight test mission to the International Space Station.

KENNEDY SPACE CENTER, FLA. - In the Orbiter Processing Facility, United Space Alliance technician Chris Moore performs gap tests on the tiles of the nose of orbiter Atlantis as part of return-to-flight activities. Atlantis is scheduled for mission STS-114, a return-to-flight test mission to the International Space Station.

KENNEDY SPACE CENTER, FLA. - In the Orbiter Processing Facility, United Space Alliance technician Jamie Haynes checks the tiles on the nose of orbiter Atlantis as part of return-to-flight activities. Atlantis is scheduled for mission STS-114, a return-to-flight test mission to the International Space Station.

The United Launch Alliance Delta IV Heavy rocket with NASA’s Orion spacecraft mounted atop, lifts off on Exploration Flight Test-1 (EFT-1) from Cape Canaveral Air Force Station's Space Launch Complex 37 at at 7:05 a.m. EST, Friday, Dec. 5, 2014, in Florida. Part of Batch image transfer from Flickr.

The United Launch Alliance Delta IV Heavy rocket with NASA’s Orion spacecraft mounted atop, lifts off on Exploration Flight Test-1 (EFT-1) from Cape Canaveral Air Force Station's Space Launch Complex 37 at at 7:05 a.m. EST, Friday, Dec. 5, 2014, in Florida. Part of Batch image transfer from Flickr.