Artemis launch team members participate in the Artemis II terminal count simulation on Wednesday, Jan. 14, 2026, inside Firing Room 1 of the Rocco A. Petrone Launch Control Center at NASA’s Kennedy Space Center in Florida. The terminal count simulation conducted by NASA’s Exploration Ground Systems team runs through the final five hours of launch countdown, include terminal count - the remaining 10 minutes of the countdown - for NASA’s Artemis II test flight which will take Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialist Christina Koch from NASA, and Mission Specialist Jeremy Hansen from the CSA (Canadian Space Agency), around the Moon and back to Earth no later than no later than April 2026 from Launch Complex 39B at NASA Kennedy.
From left to right, Artemis launch team members Emily Eilish, Clare Hadley, and Holly Wells participate in the Artemis II terminal count simulation on Wednesday, Jan. 14, 2026, inside Firing Room 1 of the Rocco A. Petrone Launch Control Center at NASA’s Kennedy Space Center in Florida. The terminal count simulation conducted by NASA’s Exploration Ground Systems team runs through the final five hours of launch countdown, include terminal count - the remaining 10 minutes of the countdown - for NASA’s Artemis II test flight which will take Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialist Christina Koch from NASA, and Mission Specialist Jeremy Hansen from the CSA (Canadian Space Agency), around the Moon and back to Earth no later than no later than April 2026 from Launch Complex 39B at NASA Kennedy.
An Artemis launch team member participates in the Artemis II terminal count simulation on Wednesday, Jan. 14, 2026, inside Firing Room 1 of the Rocco A. Petrone Launch Control Center at NASA’s Kennedy Space Center in Florida. The terminal count simulation conducted by NASA’s Exploration Ground Systems team runs through the final five hours of launch countdown, include terminal count - the remaining 10 minutes of the countdown - for NASA’s Artemis II test flight which will take Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialist Christina Koch from NASA, and Mission Specialist Jeremy Hansen from the CSA (Canadian Space Agency), around the Moon and back to Earth no later than no later than April 2026 from Launch Complex 39B at NASA Kennedy.
Charlie Blackwell-Thompson, Artemis II launch director, participates in the Artemis II terminal count simulation on Wednesday, Jan. 14, 2026, inside Firing Room 1 of the Rocco A. Petrone Launch Control Center at NASA’s Kennedy Space Center in Florida. The terminal count simulation conducted by NASA’s Exploration Ground Systems team runs through the final five hours of launch countdown, include terminal count - the remaining 10 minutes of the countdown - for NASA’s Artemis II test flight which will take Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialist Christina Koch from NASA, and Mission Specialist Jeremy Hansen from the CSA (Canadian Space Agency), around the Moon and back to Earth no later than no later than April 2026 from Launch Complex 39B at NASA Kennedy.
Members of NASA’s Exploration Ground Systems team pose for a photograph following the completion of the Artemis II terminal count simulation on Wednesday, Jan. 14, 2026, inside Firing Room 1 of the Rocco A. Petrone Launch Control Center at NASA’s Kennedy Space Center in Florida. The terminal count simulation conducted by NASA’s Exploration Ground Systems team runs through the final five hours of launch countdown, include terminal count - the remaining 10 minutes of the countdown - for NASA’s Artemis II test flight which will take Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialist Christina Koch from NASA, and Mission Specialist Jeremy Hansen from the CSA (Canadian Space Agency), around the Moon and back to Earth no later than no later than April 2026 from Launch Complex 39B at NASA Kennedy.
Charlie Blackwell-Thompson, Artemis II launch director, participates in the Artemis II terminal count simulation on Wednesday, Jan. 14, 2026, inside Firing Room 1 of the Rocco A. Petrone Launch Control Center at NASA’s Kennedy Space Center in Florida. The terminal count simulation conducted by NASA’s Exploration Ground Systems team runs through the final five hours of launch countdown, include terminal count - the remaining 10 minutes of the countdown - for NASA’s Artemis II test flight which will take Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialist Christina Koch from NASA, and Mission Specialist Jeremy Hansen from the CSA (Canadian Space Agency), around the Moon and back to Earth no later than no later than April 2026 from Launch Complex 39B at NASA Kennedy.
Kevin Todaro, Artemis launch team member, participates in the Artemis II terminal count simulation on Wednesday, Jan. 14, 2026, inside Firing Room 1 of the Rocco A. Petrone Launch Control Center at NASA’s Kennedy Space Center in Florida. The terminal count simulation conducted by NASA’s Exploration Ground Systems team runs through the final five hours of launch countdown, include terminal count - the remaining 10 minutes of the countdown - for NASA’s Artemis II test flight which will take Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialist Christina Koch from NASA, and Mission Specialist Jeremy Hansen from the CSA (Canadian Space Agency), around the Moon and back to Earth no later than no later than April 2026 from Launch Complex 39B at NASA Kennedy.
Madison Schmaltz, Artemis launch team member, participates in the Artemis II terminal count simulation on Wednesday, Jan. 14, 2026, inside Firing Room 1 of the Rocco A. Petrone Launch Control Center at NASA’s Kennedy Space Center in Florida. The terminal count simulation conducted by NASA’s Exploration Ground Systems team runs through the final five hours of launch countdown, include terminal count - the remaining 10 minutes of the countdown - for NASA’s Artemis II test flight which will take Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialist Christina Koch from NASA, and Mission Specialist Jeremy Hansen from the CSA (Canadian Space Agency), around the Moon and back to Earth no later than no later than April 2026 from Launch Complex 39B at NASA Kennedy.
Alora Mazarakis, Artemis launch team member, participates in the Artemis II terminal count simulation on Wednesday, Jan. 14, 2026, inside Firing Room 1 of the Rocco A. Petrone Launch Control Center at NASA’s Kennedy Space Center in Florida. The terminal count simulation conducted by NASA’s Exploration Ground Systems team runs through the final five hours of launch countdown, include terminal count - the remaining 10 minutes of the countdown - for NASA’s Artemis II test flight which will take Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialist Christina Koch from NASA, and Mission Specialist Jeremy Hansen from the CSA (Canadian Space Agency), around the Moon and back to Earth no later than no later than April 2026 from Launch Complex 39B at NASA Kennedy.
Charlie Blackwell-Thompson, Artemis II launch director, participates in the Artemis II terminal count simulation on Wednesday, Jan. 14, 2026, inside Firing Room 1 of the Rocco A. Petrone Launch Control Center at NASA’s Kennedy Space Center in Florida. The terminal count simulation conducted by NASA’s Exploration Ground Systems team runs through the final five hours of launch countdown, include terminal count - the remaining 10 minutes of the countdown - for NASA’s Artemis II test flight which will take Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialist Christina Koch from NASA, and Mission Specialist Jeremy Hansen from the CSA (Canadian Space Agency), around the Moon and back to Earth no later than no later than April 2026 from Launch Complex 39B at NASA Kennedy.
Charlie Blackwell-Thompson, Artemis II launch director, participates in the Artemis II terminal count simulation on Wednesday, Jan. 14, 2026, inside Firing Room 1 of the Rocco A. Petrone Launch Control Center at NASA’s Kennedy Space Center in Florida. The terminal count simulation conducted by NASA’s Exploration Ground Systems team runs through the final five hours of launch countdown, include terminal count - the remaining 10 minutes of the countdown - for NASA’s Artemis II test flight which will take Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialist Christina Koch from NASA, and Mission Specialist Jeremy Hansen from the CSA (Canadian Space Agency), around the Moon and back to Earth no later than no later than April 2026 from Launch Complex 39B at NASA Kennedy.
From left, Dan Florez, NASA test director, and Lili Villarreal, Artemis II landing and recovery director, participate in the Artemis II terminal count simulation on Wednesday, Jan. 14, 2026, inside Firing Room 1 of the Rocco A. Petrone Launch Control Center at NASA’s Kennedy Space Center in Florida. The terminal count simulation conducted by NASA’s Exploration Ground Systems team runs through the final five hours of launch countdown, include terminal count - the remaining 10 minutes of the countdown - for NASA’s Artemis II test flight which will take Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialist Christina Koch from NASA, and Mission Specialist Jeremy Hansen from the CSA (Canadian Space Agency), around the Moon and back to Earth no later than no later than April 2026 from Launch Complex 39B at NASA Kennedy.
An American flag displays inside Firing Room 1 of the Rocco A. Petrone Launch Control Center while members of NASA’s Exploration Ground Systems participate in the Artemis II terminal count simulation on Wednesday, Jan. 14, 2026, at NASA’s Kennedy Space Center in Florida. The terminal count simulation runs through the final five hours of launch countdown, include terminal count - the remaining 10 minutes of the countdown - for NASA’s Artemis II test flight which will take Commander Reid Wiseman, Pilot Victor Glover, and Mission Specialist Christina Koch from NASA, and Mission Specialist Jeremy Hansen from the CSA (Canadian Space Agency), around the Moon and back to Earth no later than no later than April 2026 from Launch Complex 39B at NASA Kennedy.
Members of the Artemis I launch team, including personnel with NASA’s Exploration Ground Systems (EGS) and contractor Jacobs, monitor activities during the ninth formal terminal countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on June 24, 2021. This is part of a series of simulations to help the team prepare for the launch of Artemis I, the uncrewed first flight of the Space Launch System rocket and Orion spacecraft.
Members of the Artemis I launch team, including personnel with NASA’s Exploration Ground Systems (EGS) and contractor Jacobs, monitor activities during the ninth formal terminal countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on June 24, 2021. This is part of a series of simulations to help the team prepare for the launch of Artemis I, the uncrewed first flight of the Space Launch System rocket and Orion spacecraft.
Chief of the Test, Launch and Recovery Operations Branch within the Exploration Ground Systems (EGS) Program Jeremy Graeber, (left) and Artemis I Launch Director Charlie Blackwell-Thompson (right), along with members of the Artemis I launch team, including personnel with EGS and contractor Jacobs, monitor activities during the ninth formal terminal countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on June 24, 2021. This is part of a series of simulations to help the team prepare for the launch of Artemis I, the uncrewed first flight of the Space Launch System rocket and Orion spacecraft.
Members of the Artemis I launch team, including personnel with NASA’s Exploration Ground Systems (EGS) and contractor Jacobs, monitor activities during the ninth formal terminal countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on June 24, 2021. This is part of a series of simulations to help the team prepare for the launch of Artemis I, the uncrewed first flight of the Space Launch System rocket and Orion spacecraft.
Members of the Artemis I launch team, including personnel with NASA’s Exploration Ground Systems (EGS) and contractor Jacobs, monitor activities during the ninth formal terminal countdown simulation inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on June 24, 2021. This is part of a series of simulations to help the team prepare for the launch of Artemis I, the uncrewed first flight of the Space Launch System rocket and Orion spacecraft.
Artemis I launch team member Joshua Jones monitors activities during the ninth formal terminal countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on June 24, 2021. The Artemis I launch team includes personnel with NASA’s Exploration Ground Systems (EGS) and contractor Jacobs. This is part of a series of simulations to help the team prepare for the launch of Artemis I, the uncrewed first flight of the Space Launch System rocket and Orion spacecraft.
Members of the Artemis I launch team, including personnel with NASA’s Exploration Ground Systems (EGS) and contractor Jacobs, monitor activities during the ninth formal terminal countdown simulation inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on June 24, 2021. This is part of a series of simulations to help the team prepare for the launch of Artemis I, the uncrewed first flight of the Space Launch System rocket and Orion spacecraft.
Artemis I Launch Director Charlie Blackwell-Thompson monitors activities during the ninth formal terminal countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on June 24, 2021. Members of the Artemis I launch team include personnel with NASA’s Exploration Ground Systems (EGS) and contractor Jacobs. This is part of a series of simulations to help the team prepare for the launch of Artemis I, the uncrewed first flight of the Space Launch System rocket and Orion spacecraft.
Chief of the Test, Launch and Recovery Operations Branch within the Exploration Ground Systems (EGS) Program Jeremy Graeber monitors activities during the ninth formal terminal countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on June 24, 2021. Members of the Artemis I launch team include personnel with EGS and contractor Jacobs. This is part of a series of simulations to help the team prepare for the launch of Artemis I, the uncrewed first flight of the Space Launch System rocket and Orion spacecraft.
Charlie Blackwell-Thompson, Artemis launch director, Exploration Ground Systems at NASA’s Kennedy Space Center in Florida, participates in the Artemis II Terminal Count Simulation #11 inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy on Thursday, Nov. 7, 2024. The simulations go through launch day scenarios to help launch team members test software and make adjustments if needed during countdown operations. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in the Artemis II Terminal Count Simulation #11 inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on Thursday, Nov. 7, 2024. The simulations go through launch day scenarios to help launch team members test software and make adjustments if needed during countdown operations. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in the Artemis II Terminal Count Simulation #11 inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on Thursday, Nov. 7, 2024. The simulations go through launch day scenarios to help launch team members test software and make adjustments if needed during countdown operations. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Mari Forrestel, Artemis launch director technical assistant, Exploration Ground Systems at NASA’s Kennedy Space Center in Florida, participates in the Artemis II Terminal Count Simulation #11 inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy on Thursday, Nov. 7, 2024. The simulations go through launch day scenarios to help launch team members test software and make adjustments if needed during countdown operations. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Charlie Blackwell-Thompson, Artemis launch director, Exploration Ground Systems at NASA’s Kennedy Space Center in Florida, participates in the Artemis II Terminal Count Simulation #11 inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy on Thursday, Nov. 7, 2024. The simulations go through launch day scenarios to help launch team members test software and make adjustments if needed during countdown operations. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in the Artemis II Terminal Count Simulation #11 inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on Thursday, Nov. 7, 2024. The simulations go through launch day scenarios to help launch team members test software and make adjustments if needed during countdown operations. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Charlie Blackwell-Thompson, Artemis launch director, Exploration Ground Systems, participates an Artemis II Terminal Count Simulation in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Friday, Dec. 6, 2024. Teams practiced running through the last hours of launch countdown as part of an integrated ground systems test the Exploration Ground Systems team is undergoing to prepare for Artemis II. This particular operation focused on testing the updated launch control system software the Artemis launch team uses to launch the SLS (Space Launch System) rocket and Orion spacecraft. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in an Artemis II Terminal Count Simulation in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Friday, Dec. 6, 2024. Teams practiced running through the last hours of launch countdown as part of an integrated ground systems test the Exploration Ground Systems team is undergoing to prepare for Artemis II. This particular operation focused on testing the updated launch control system software the Artemis launch team uses to launch the SLS (Space Launch System) rocket and Orion spacecraft. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in an Artemis II Terminal Count Simulation in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Friday, Dec. 6, 2024. Teams practiced running through the last hours of launch countdown as part of an integrated ground systems test the Exploration Ground Systems team is undergoing to prepare for Artemis II. This particular operation focused on testing the updated launch control system software the Artemis launch team uses to launch the SLS (Space Launch System) rocket and Orion spacecraft. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in an Artemis II Terminal Count Simulation in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Friday, Dec. 6, 2024. Teams practiced running through the last hours of launch countdown as part of an integrated ground systems test the Exploration Ground Systems team is undergoing to prepare for Artemis II. This particular operation focused on testing the updated launch control system software the Artemis launch team uses to launch the SLS (Space Launch System) rocket and Orion spacecraft. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team pose for a holiday group photo in Firing Room 2 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Thursday, Dec. 12, 2024. Teams participated in a cryogenic and terminal count simulation for Artemis II. The simulations go through launch day scenarios to help launch team members test software and make any necessary adjustments during countdown operations. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team pose for a holiday group photo in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Thursday, Dec. 12, 2024. Teams participated in a cryogenic and terminal count simulation for Artemis II. The simulations go through launch day scenarios to help launch team members test software and make any necessary adjustments during countdown operations. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team pose for a holiday group photo in Firing Room 2 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Wednesday, Dec. 11, 2024. Teams participated in a cryogenic and terminal count simulation for Artemis II. The simulations go through launch day scenarios to help launch team members test software and make any necessary adjustments during countdown operations. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team pose for a holiday group photo in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Wednesday, Dec. 11, 2024. Teams participated in a cryogenic and terminal count simulation for Artemis II. The simulations go through launch day scenarios to help launch team members test software and make any necessary adjustments during countdown operations. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team pose for a holiday group photo in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Wednesday, Dec. 11, 2024. Teams participated in a cryogenic and terminal count simulation for Artemis II. The simulations go through launch day scenarios to help launch team members test software and make any necessary adjustments during countdown operations. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Jeff Spaulding, senior NASA test director for Artemis II at NASA’s Kennedy Space Center in Florida participates in an Artemis II launch countdown simulation inside Firing Room 1 in the Launch Control Center at NASA Kennedy on Wednesday, Oct. 8, 2025. The simulations go through launch day scenarios to help launch team members test software and make adjustments if needed during countdown operations. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in an Artemis II launch countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on Wednesday, Oct. 8, 2025. The simulations go through launch day scenarios to help launch team members test software and make adjustments if needed during countdown operations. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in an Artemis II launch countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on Wednesday, Oct. 8, 2025. The simulations go through launch day scenarios to help launch team members test software and make adjustments if needed during countdown operations. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Anton Kiriwas, senior technical integration manager and senior launch project engineer with NASA’s Exploration Ground Systems Program participates in an Artemis II launch countdown simulation inside Firing Room 1 in the Launch Control Center at the agency’s Kennedy Space Center in Florida on Wednesday, Oct. 8, 2025. The simulations go through launch day scenarios to help launch team members test software and make adjustments if needed during countdown operations. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in an Artemis II launch countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on Wednesday, Oct. 8, 2025. The simulations go through launch day scenarios to help launch team members test software and make adjustments if needed during countdown operations. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Joe Pavicic, operations project engineer, participates in an Artemis II launch countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on Wednesday, Oct. 8, 2025. The simulations go through launch day scenarios to help launch team members test software and make adjustments if needed during countdown operations. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis II launch team, including personnel with NASA’s Exploration Ground Systems and contractor Jacobs, monitor activities during the Artemis II terminal countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on Monday, Sept. 11, 2023. This is part of a series of simulations to help the team prepare for the launch of Artemis II, the first mission with astronauts under Artemis that will test and check out all of the Orion spacecraft’s systems needed for future crewed missions.
NASA Artemis Launch Director Charlie Blackwell-Thompson, left, and Assistant Artemis Launch Director Jeremy Graeber monitor activities during the Artemis II terminal countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on Monday, Sept. 11, 2023. Members of the Artemis II launch team include personnel with NASA’s Exploration Ground Systems and contractor Jacobs. This is part of a series of simulations to help the team prepare for the launch of Artemis II, the first mission with astronauts under Artemis that will test and check out all of the Orion spacecraft’s systems needed for future crewed missions.
Members of NASA’s mission management team, launch team, and contractor Jacobs participate in the 11th terminal countdown simulation for the Artemis I launch inside Kennedy Space Center’s Launch Control Center on Oct. 14, 2021. It marked the first time these teams conducted the simulation together. During Artemis I, the agency’s Orion spacecraft will lift off from Kennedy aboard NASA’s most powerful rocket – the Space Launch System – to fly farther than any spacecraft built for humans has ever flown. Through NASA’s Artemis missions, the agency, along with commercial and international partners, will establish a sustainable human presence on the Moon to prepare for missions to Mars.
From left, John Kracsun and Keith Lawton, test conductors for contractor Jacobs, and Melissa Jones, Landing and Recovery director, NASA’s Exploration Ground Systems, participate in the 11th terminal countdown simulation for the Artemis I launch inside Kennedy Space Center’s Launch Control Center on Oct. 14, 2021. The event marked the first time members of NASA’s mission management team, launch team, and Jacobs conducted the simulation together. During Artemis I, the agency’s Orion spacecraft will lift off from Kennedy aboard NASA’s most powerful rocket – the Space Launch System – to fly farther than any spacecraft built for humans has ever flown. Through NASA’s Artemis missions, the agency, along with commercial and international partners, will establish a sustainable human presence on the Moon to prepare for missions to Mars.
From left, Scott Cieslak, NASA umbilical operations and testing technical lead, and Elliot Payne, arms & umbilical systems and optics engineer for contractor Jacobs, participate in the 11th terminal countdown simulation for the Artemis I launch inside Kennedy Space Center’s Launch Control Center on Oct. 14, 2021. The event marked the first time members of NASA’s mission management team, launch team, and Jacobs conducted the simulation together. During Artemis I, the agency’s Orion spacecraft will lift off from Kennedy aboard NASA’s most powerful rocket – the Space Launch System – to fly farther than any spacecraft built for humans has ever flown. Through NASA’s Artemis missions, the agency, along with commercial and international partners, will establish a sustainable human presence on the Moon to prepare for missions to Mars.
Members of NASA’s mission management team, launch team, and contractor Jacobs participate in the 11th terminal countdown simulation for the Artemis I launch inside Kennedy Space Center’s Launch Control Center on Oct. 14, 2021. It marked the first time these teams conducted the simulation together. During Artemis I, the agency’s Orion spacecraft will lift off from Kennedy aboard NASA’s most powerful rocket – the Space Launch System – to fly farther than any spacecraft built for humans has ever flown. Through NASA’s Artemis missions, the agency, along with commercial and international partners, will establish a sustainable human presence on the Moon to prepare for missions to Mars.
Mike Bolger, manager, Exploration Ground Systems, participates in the 11th terminal countdown simulation for the Artemis I launch inside Kennedy Space Center’s Launch Control Center on Oct. 14, 2021. The event marked the first time members of NASA’s mission management team, launch team, and contractor Jacobs conducted the simulation together. During Artemis I, the agency’s Orion spacecraft will lift off from Kennedy aboard NASA’s most powerful rocket – the Space Launch System – to fly farther than any spacecraft built for humans has ever flown. Through NASA’s Artemis missions, the agency, along with commercial and international partners, will establish a sustainable human presence on the Moon to prepare for missions to Mars.
Members of the Artemis II launch team, including personnel with NASA’s Exploration Ground Systems and contractor Jacobs, monitor activities during the Artemis II terminal countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on Monday, Sept. 11, 2023. This is part of a series of simulations to help the team prepare for the launch of Artemis II, the first mission with astronauts under Artemis that will test and check out all of the Orion spacecraft’s systems needed for future crewed missions.
Teams at NASA’s Kennedy Space Center in Florida participate in the first joint integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Thursday, Sept. 11, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. These simulations will help certify that the launch team is ready for Artemis II – the first crewed Artemis mission that will send four astronauts around the Moon and back.
Teams at NASA’s Kennedy Space Center in Florida participate in the first joint integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Thursday, Sept. 11, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. These simulations will help certify that the launch team is ready for Artemis II – the first crewed Artemis mission that will send four astronauts around the Moon and back.
Teams at NASA’s Kennedy Space Center in Florida participate in the first joint integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Thursday, Sept. 11, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. These simulations will help certify that the launch team is ready for Artemis II – the first crewed Artemis mission that will send four astronauts around the Moon and back.
Teams at NASA’s Kennedy Space Center in Florida participate in the first joint integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Thursday, Sept. 11, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. These simulations will help certify that the launch team is ready for Artemis II – the first crewed Artemis mission that will send four astronauts around the Moon and back.
Teams at NASA’s Kennedy Space Center in Florida participate in the first joint integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Thursday, Sept. 11, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. These simulations will help certify that the launch team is ready for Artemis II – the first crewed Artemis mission that will send four astronauts around the Moon and back.
Teams at NASA’s Kennedy Space Center in Florida participate in the first joint integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Thursday, Sept. 11, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. These simulations will help certify that the launch team is ready for Artemis II – the first crewed Artemis mission that will send four astronauts around the Moon and back.
Teams at NASA’s Kennedy Space Center in Florida participate in the first joint integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Thursday, Sept. 11, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. These simulations will help certify that the launch team is ready for Artemis II – the first crewed Artemis mission that will send four astronauts around the Moon and back.
Teams at NASA’s Kennedy Space Center in Florida participate in the first joint integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Thursday, Sept. 11, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. These simulations will help certify that the launch team is ready for Artemis II – the first crewed Artemis mission that will send four astronauts around the Moon and back.
Charlie Blackwell-Thompson, Artemis launch director, Exploration Ground Systems at NASA’s Kennedy Space Center in Florida, participates in the first joint integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Thursday, Sept. 11, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. These simulations will help certify that the launch team is ready for Artemis II – the first crewed Artemis mission that will send four astronauts around the Moon and back.
Teams at NASA’s Kennedy Space Center in Florida participate in the first joint integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Thursday, Sept. 11, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. These simulations will help certify that the launch team is ready for Artemis II – the first crewed Artemis mission that will send four astronauts around the Moon and back.
Jeremy Graeber, Artemis assistant launch director within NASA’s Exploration Ground Systems Program, participates in the first joint integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Thursday, Sept. 11, 2025 at the agency’s Kennedy Space Center in Florida. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. These simulations will help certify that the launch team is ready for Artemis II – the first crewed Artemis mission that will send four astronauts around the Moon and back.
Charlie Blackwell-Thompson, Artemis launch director, Exploration Ground Systems at NASA’s Kennedy Space Center in Florida, participates in the first joint integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Thursday, Sept. 11, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. These simulations will help certify that the launch team is ready for Artemis II – the first crewed Artemis mission that will send four astronauts around the Moon and back.
Teams at NASA’s Kennedy Space Center in Florida participate in the first joint integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Thursday, Sept. 11, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. These simulations will help certify that the launch team is ready for Artemis II – the first crewed Artemis mission that will send four astronauts around the Moon and back.
Teams at NASA’s Kennedy Space Center in Florida participate in the first joint integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Thursday, Sept. 11, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. These simulations will help certify that the launch team is ready for Artemis II – the first crewed Artemis mission that will send four astronauts around the Moon and back.
Teams at NASA’s Kennedy Space Center in Florida participate in the first joint integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Thursday, Sept. 11, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. These simulations will help certify that the launch team is ready for Artemis II – the first crewed Artemis mission that will send four astronauts around the Moon and back.
Members of NASA’s mission management team, launch team, and contractor Jacobs participate in the 11th terminal countdown simulation for the Artemis I launch inside Kennedy Space Center’s Launch Control Center on Oct. 14, 2021. It marked the first time these two teams conducted the simulation together. During Artemis I, the agency’s Orion spacecraft will lift off from Kennedy aboard NASA’s most powerful rocket – the Space Launch System – to fly farther than any spacecraft built for humans has ever flown. Through NASA’s Artemis missions, the agency, along with commercial and international partners, will establish a sustainable human presence on the Moon to prepare for missions to Mars.
Members of the Artemis II launch team, including personnel with NASA’s Exploration Ground Systems and contractor Jacobs, monitor activities during the Artemis II terminal countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on Monday, Sept. 11, 2023. This is part of a series of simulations to help the team prepare for the launch of Artemis II, the first mission with astronauts under Artemis that will test and check out all of the Orion spacecraft’s systems needed for future crewed missions.
Dr. Sharmi Watkins, Artemis I deputy chief medical officer, participates in the 11th terminal countdown simulation for the Artemis I launch inside Kennedy Space Center’s Launch Control Center on Oct. 14, 2021. The event marked the first time members of NASA’s mission management team, launch team, and contractor Jacobs conducted the simulation together. During Artemis I, the agency’s Orion spacecraft will lift off from Kennedy aboard NASA’s most powerful rocket – the Space Launch System – to fly farther than any spacecraft built for humans has ever flown. Through NASA’s Artemis missions, the agency, along with commercial and international partners, will establish a sustainable human presence on the Moon to prepare for missions to Mars.
Melissa Jones, Landing and Recovery director, NASA’s Exploration Ground Systems, participates in the 11th terminal countdown simulation for the Artemis I launch inside Kennedy Space Center’s Launch Control Center on Oct. 14, 2021. The event marked the first time members of NASA’s mission management team, launch team, and contractor Jacobs conducted the simulation together. During Artemis I, the agency’s Orion spacecraft will lift off from Kennedy aboard NASA’s most powerful rocket – the Space Launch System – to fly farther than any spacecraft built for humans has ever flown. Through NASA’s Artemis missions, the agency, along with commercial and international partners, will establish a sustainable human presence on the Moon to prepare for missions to Mars.
Members of Artemis I imagery console participate in the 11th terminal countdown simulation for the Artemis I launch inside Kennedy Space Center’s Launch Control Center on Oct. 14, 2021. It marked the first time NASA’s mission management team, launch team, and contractor Jacobs conducted the simulation together. During Artemis I, the agency’s Orion spacecraft will lift off from Kennedy aboard NASA’s most powerful rocket – the Space Launch System – to fly farther than any spacecraft built for humans has ever flown. Through NASA’s Artemis missions, the agency, along with commercial and international partners, will establish a sustainable human presence on the Moon to prepare for missions to Mars.
NASA Artemis Launch Director Charlie Blackwell-Thompson, left, and Assistant Artemis Launch Director Jeremy Graeber monitor activities during the Artemis II terminal countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on Monday, Sept. 11, 2023. Members of the Artemis II launch team include personnel with NASA’s Exploration Ground Systems and contractor Jacobs. This is part of a series of simulations to help the team prepare for the launch of Artemis II, the first mission with astronauts under Artemis that will test and check out all of the Orion spacecraft’s systems needed for future crewed missions.
From left, Beverly Case, handling, mechanics & structures engineer for contractor Jacobs, and David Valletta, NASA ignition overpressure protection and sound suppression engineer, participate in the 11th terminal countdown simulation for the Artemis I launch inside Kennedy Space Center’s Launch Control Center on Oct. 14, 2021. The event marked the first time members of NASA’s mission management team, launch team, and Jacobs conducted the simulation together. During Artemis I, the agency’s Orion spacecraft will lift off from Kennedy aboard NASA’s most powerful rocket – the Space Launch System – to fly farther than any spacecraft built for humans has ever flown. Through NASA’s Artemis missions, the agency, along with commercial and international partners, will establish a sustainable human presence on the Moon to prepare for missions to Mars.
Mike Bolger; front; manager; NASA’s Exploration Ground Systems; and Chris Cianciola; NASA’s Space Launch System Program deputy manager at Marshall Space Flight Center; participate in the 11th terminal countdown simulation for the Artemis I launch inside Kennedy Space Center’s Launch Control Center on Oct. 14; 2021. The event marked the first time members of NASA’s mission management team; launch team; and contractor Jacobs conducted the simulation together. During Artemis I; the agency’s Orion spacecraft will lift off from Kennedy aboard NASA’s most powerful rocket – the Space Launch System – to fly farther than any spacecraft built for humans has ever flown. Through NASA’s Artemis missions; the agency; along with commercial and international partners; will establish a sustainable human presence on the Moon to prepare for missions to Mars.
Members of the Artemis II launch team, including personnel with NASA’s Exploration Ground Systems and contractor Jacobs, monitor activities during the Artemis II terminal countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on Monday, Sept. 11, 2023. This is part of a series of simulations to help the team prepare for the launch of Artemis II, the first mission with astronauts under Artemis that will test and check out all of the Orion spacecraft’s systems needed for future crewed missions.
Dr. Sharmi Watkins, Artemis I deputy chief medical officer, participates in the 11th terminal countdown simulation for the Artemis I launch inside Kennedy Space Center’s Launch Control Center on Oct. 14, 2021. The event marked the first time members of NASA’s mission management team, launch team, and contractor Jacobs conducted the simulation together. During Artemis I, the agency’s Orion spacecraft will lift off from Kennedy aboard NASA’s most powerful rocket – the Space Launch System – to fly farther than any spacecraft built for humans has ever flown. Through NASA’s Artemis missions, the agency, along with commercial and international partners, will establish a sustainable human presence on the Moon to prepare for missions to Mars.
Members of the Artemis II launch team, including personnel with NASA’s Exploration Ground Systems and contractor Jacobs, monitor activities during the Artemis II terminal countdown simulation inside Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida on Monday, Sept. 11, 2023. This is part of a series of simulations to help the team prepare for the launch of Artemis II, the first mission with astronauts under Artemis that will test and check out all of the Orion spacecraft’s systems needed for future crewed missions.
Charlie Blackwell-Thompson, launch director, Exploration Ground Systems, participates in the 11th terminal countdown simulation for the Artemis I launch inside Kennedy Space Center’s Launch Control Center on Oct. 14, 2021. The event marked the first time members of NASA’s mission management team, launch team, and contractor Jacobs conducted the simulation together. During Artemis I, the agency’s Orion spacecraft will lift off from Kennedy aboard NASA’s most powerful rocket – the Space Launch System – to fly farther than any spacecraft built for humans has ever flown. Through NASA’s Artemis missions, the agency, along with commercial and international partners, will establish a sustainable human presence on the Moon to prepare for missions to Mars.
STS083-748-006 (4-8 April 1997) --- This type of scene is seen about every 45 minutes as the astronauts travel around the world. Sunrises and sunsets differ in structure, since the tropopause altitude and atmospheric lamina temperatures vary with time of day, season, and latitude. Close analysis of these terminator photographs provide counts of the number and spacing of atmospheric laminae. In the photographs, as many as 4 laminae have been noted in the normally red-to-orange troposphere, and up to 12 laminae have been counted in the blue upper atmosphere. However, true replication of human vision is not possible using present films. For instance, while on orbit, one astronaut counted 22 layers. The photograph of that event recorded only 8 such layers.
KENNEDY SPACE CENTER, FLA. -- ASTP crewman Thomas Stafford is suited up for the Countdown Demonstration Test. The test, a step-by-step dress rehearsal for the July 15 luanch, will culminate in a simulated T-zero and launch. Yesterday the 'wet' portion of the test was conducted with the vehicle fueled as it will be on launch day. The fuels were offloaded and the terminal portion of the count repeated with the prime crew aboard the spacecraft.
Charlie Blackwell-Thompson, at left, NASA Artemis launch director; and Jeremy Graeber, assistant Artemis launch director, monitor the terminal countdown simulation for the Artemis II mission inside Firing Room at the Launch Control Center at NASA’s Kennedy Space Center in Florida on Thursday, Dec. 12, 2024. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in a cryogenic simulation for Artemis II in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Wednesday, Dec. 11, 2024. Cryogenic simulations allow team members the opportunity to practice loading propellant – liquid hydrogen and liquid oxygen – onto the SLS (Space Launch System) rocket and make any necessary adjustments during countdown operations. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in a cryogenic simulation for Artemis II in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Wednesday, Dec. 11, 2024. Cryogenic simulations allow team members the opportunity to practice loading propellant – liquid hydrogen and liquid oxygen – onto the SLS (Space Launch System) rocket and make any necessary adjustments during countdown operations. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in a terminal countdown simulation for Artemis II in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Thursday, Dec. 12, 2024. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in a terminal countdown simulation for Artemis II in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Thursday, Dec. 12, 2024. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in a terminal countdown simulation for Artemis II in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Thursday, Dec. 12, 2024. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in a terminal countdown simulation for Artemis II in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Thursday, Dec. 12, 2024. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Charlie Blackwell-Thompson, center left, NASA Artemis launch director; and Jeremy Graeber, center right, assistant Artemis launch director, along with members of the Artemis launch team participate in a terminal countdown simulation for Artemis II in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Thursday, Dec. 12, 2024. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in a terminal countdown simulation for Artemis II in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Thursday, Dec. 12, 2024. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Artemis launch team members participate in an integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Wednesday, Dec. 10, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Artemis launch team members participate in an integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Wednesday, Dec. 10, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Charlie Blackwell-Thompson, Artemis launch director, Exploration Ground Systems at NASA’s Kennedy Space Center in Florida, participates in an integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Wednesday, Dec. 10, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Artemis launch team members participate in an integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Wednesday, Dec. 10, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Artemis launch team members participate in an integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Wednesday, Dec. 10, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Artemis launch team members participate in an integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Wednesday, Dec. 10, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Artemis launch team members participate in an integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Wednesday, Dec. 10, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Artemis launch team members participate in an integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Wednesday, Dec. 10, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Artemis launch team members participate in an integrated launch countdown simulation for Artemis II inside Firing Room 1 of the Launch Control Center on Wednesday, Dec. 10, 2025. The training exercise involved engineers from Kennedy, Marshall Space Flight Center in Huntsville, Alabama, and Johnson Space Center in Houston coming together to rehearse all aspects of the launch countdown, from cryogenic loading – filling tanks in the SLS (Space Launch System) rocket’s core stage with liquid hydrogen and liquid oxygen – to liftoff. For Artemis II, four astronauts will venture around the Moon, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in a terminal countdown simulation for Artemis II in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Thursday, Dec. 12, 2024. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.
Members of the Artemis launch team participate in a cryogenic simulation for Artemis II in Firing Room 1 inside the Launch Control Center at NASA’s Kennedy Space Center in Florida on Wednesday, Dec. 11, 2024. Cryogenic simulations allow team members the opportunity to practice loading propellant – liquid hydrogen and liquid oxygen – onto the SLS (Space Launch System) rocket and make any necessary adjustments during countdown operations. Four astronauts will venture around the Moon on Artemis II, the first crewed mission on NASA’s path to establishing a long-term presence for science and exploration through Artemis.