NASA Glenn Research Center Sign at the Intersection of NASA Parkway and Broiokpark Road. The sign reads: For The Benefit Of All

Main Entrance of NASA Glenn Research Center at Brookpark Road and NASA Parkway. The signs read: Research and Technology For The Benefit Of All.

NASA completed a full-duration, 500-second hot fire of an RS-25 certification engine Jan. 17, continuing a critical test series to support future SLS (Space Launch System) missions to the Moon and beyond as NASA explores the secrets of the universe for the benefit of all.

NASA completed a full-duration, 500-second hot fire of an RS-25 certification engine Jan. 17, continuing a critical test series to support future SLS (Space Launch System) missions to the Moon and beyond as NASA explores the secrets of the universe for the benefit of all.

NASA completed a full-duration, 500-second hot fire of an RS-25 certification engine Jan. 17, continuing a critical test series to support future SLS (Space Launch System) missions to the Moon and beyond as NASA explores the secrets of the universe for the benefit of all.

NASA completed a full-duration, 500-second hot fire of an RS-25 certification engine Jan. 27, marking the halfway point in a critical test series to support future SLS (Space Launch System) missions to the Moon and beyond as NASA explores the secrets of the universe for the benefit of all

NASA completed a full-duration, 500-second hot fire of an RS-25 certification engine Jan. 27, marking the halfway point in a critical test series to support future SLS (Space Launch System) missions to the Moon and beyond as NASA explores the secrets of the universe for the benefit of all.

NASA completed a full-duration, 500-second hot fire of an RS-25 certification engine Jan. 27, marking the halfway point in a critical test series to support future SLS (Space Launch System) missions to the Moon and beyond as NASA explores the secrets of the universe for the benefit of all.

NASA completed a full-duration, 500-second hot fire of an RS-25 certification engine Jan. 17, continuing a critical test series to support future SLS (Space Launch System) missions to the Moon and beyond as NASA explores the secrets of the universe for the benefit of all.

NASA astronaut Reid Wiseman, Artemis II commander, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut, Christina Koch, Artemis II mission specialist, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut Christina Koch, Artemis II mission specialist, and the remaining Artemis II crew members walk on the crew access arm of the mobile launcher in the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on Tuesday, Aug. 12, 2025. During a two-day operation, the Artemis II team practiced night-run demonstrations of different launch day scenarios like suit-up operations, walk-out, and arriving at the launch pad for the Artemis II test flight. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.  

NASA astronaut, Christina Koch, Artemis II mission specialist, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

From left to right, NASA astronauts Victor Glover, Artemis II pilot and Reid Wiseman, Artemis II commander, conduct suit-up operations inside the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on Monday, Aug. 11, 2025. During a two-day operation, the Artemis II team practiced night-run demonstrations of different launch day scenarios like suit-up operations, walk-out, and arriving at the launch pad for the Artemis II test flight. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.  

NASA astronaut Christina Koch, Artemis II mission specialist, dons her glove inside the White Room on the crew access arm of the mobile launcher in the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on Tuesday, Aug. 12, 2025. During a two-day operation, the Artemis II team practiced night-run demonstrations of different launch day scenarios like suit-up operations, walk-out, and arriving at the launch pad for the Artemis II test flight. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.  

From left, NASA astronauts Victor Glover, Artemis II pilot, and Reid Wiseman, Artemis II commander, undergo spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut Christina Koch, Artemis II mission specialist, smiles during suit-up operations inside the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on Monday, Aug. 11, 2025. During a two-day operation, the Artemis II team practiced night-run demonstrations of different launch day scenarios like suit-up operations, walk-out, and arriving at the launch pad for the Artemis II test flight. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.

NASA astronaut Christina Koch, Artemis II mission specialist, stands in the White Room on the crew access arm of the mobile launcher in the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on Tuesday, Aug. 12, 2025. During a two-day operation, the Artemis II team practiced night-run demonstrations of different launch day scenarios like suit-up operations, walk-out, and arriving at the launch pad for the Artemis II test flight. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.  

From left, NASA astronauts Victor Glover, Artemis II pilot, and Reid Wiseman, Artemis II commander, undergo spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut Victor Glover, Artemis II pilot, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut Victor Glover, Artemis II pilot, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut, Christina Koch, Artemis II mission specialist, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut, Christina Koch, Artemis II mission specialist, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut Reid Wiseman, Artemis II commander, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut Christina Koch, Artemis II mission specialist, smiles during suit-up operations inside the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on Monday, Aug. 11, 2025. During a two-day operation, the Artemis II team practiced night-run demonstrations of different launch day scenarios like suit-up operations, walk-out, and arriving at the launch pad for the Artemis II test flight. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.

The sun sets as Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist participate in the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Keegan Barber)

NASA astronaut Victor Glover, Artemis II pilot, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

From left, NASA astronauts Victor Glover, Artemis II pilot, and Reid Wiseman, Artemis II commander, undergo spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Crew depart the Neil A. Armstrong Operations and Checkout Building to travel to the Vehicle Assembly Building to board their Orion spacecraft atop NASA’s SLS (Space Launch System) rocket as part of the Artemis II Countdown Demonstration Test, December 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut, Christina Koch, Artemis II mission specialist, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut Victor Glover, Artemis II pilot, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, smiles during suit-up operations inside the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on Monday, Aug. 11, 2025. During a two-day operation, the Artemis II team practiced night-run demonstrations of different launch day scenarios like suit-up operations, walk-out, and arriving at the launch pad for the Artemis II test flight. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.

NASA astronauts Christina Koch, Artemis II mission specialist, and Victor Glover, Artemis II pilot, walk on the crew access arm of the mobile launcher in the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on Tuesday, Aug. 12, 2025. During a two-day operation, the Artemis II team practiced night-run demonstrations of different launch day scenarios like suit-up operations, walk-out, and arriving at the launch pad for the Artemis II test flight. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.  

CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut, Christina Koch, Artemis II mission specialist, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut Reid Wiseman, Artemis II commander, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut, Christina Koch, Artemis II mission specialist, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut Victor Glover, Artemis II pilot, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut Reid Wiseman, Artemis II commander, undergoes spacesuit checks inside the crew quarters suit-up room in the Neil A. Armstrong Operations and Checkout Building part of the Artemis II Countdown Demonstration Test at the agency’s Kennedy Space Center on Saturday, Dec. 20, 2025. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Main Gate, NASA Glenn Research Center, Cleveland, Ohio

iss068e026401 (Dec. 3, 2022) --- NASA astronauts (left to right) Josh Cassada and Frank Rubio pictured during a spacewalk installing a roll-out solar array, or iROSA, to the International Space Station's starboard truss structure. Once all six iROSAs are installed, the station’s power generation is expected to increase to a combined total of more than 250 kW, more than a 30% increase, benefiting space station research and operations.

Teams monitor the progress of a Countdown Demonstration Test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 2 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Aubrey Gemignani)

The astronaut transport vehicle carrying Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist is seen as it departs the Vehicle Assembly Building following the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams simulated the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Keegan Barber)

NASA astronaut Andre Douglas talks with Taylor Hose, left, Christian Warriner of the Closeout Crew as they prepare for the arrival of Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, at the 275-foot level of the mobile launcher as they prepare to board their Orion spacecraft atop NASA’s Space Launch System rocket during the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Joel Kowsky)

NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist are seen as they depart the Neil A. Armstrong Operations and Checkout Building to board their Orion spacecraft atop NASA’s Space Launch System rocket inside the Vehicle Assembly Building as part of the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Aubrey Gemignani)

Artemis II crewmembers CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist, right, and NASA astronauts Victor Glover, pilot; Christina Koch, mission specialist; after exiting the elevator at the 275-foot level of the mobile launcher as they walk towards the crew access arm prepare to board their Orion spacecraft atop NASA’s Space Launch System rocket during the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Joel Kowsky)

Teams monitor the progress of a Countdown Demonstration Test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 2 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Aubrey Gemignani)

From top left to right, NASA astronauts Victor Glover, Artemis II pilot; Reid Wiseman, Artemis II commander; CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, and NASA astronaut Christina Koch, Artemis II mission specialist, suit up and walk out of the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on Monday, Aug. 11, 2025. During a two-day operation, the Artemis II team practiced night-run demonstrations of different launch day scenarios for the Artemis II test flight. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.  

NASA’s Space Launch System rocket is seen inside high bay 3 of the Vehicle Assembly Building as teams await the arrival of Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist; to board their Orion spacecraft atop the rocket as part of the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Joel Kowsky)

The sun rises shortly before Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist participate in the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Keegan Barber)

NASA astronauts Reid Wiseman, Artemis II commander, Victor Glover, Artemis II pilot, Christina Koch, Artemis II mission specialist and CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, depart the Neil A. Armstrong Operations and Checkout Building to travel to the Vehicle Assembly Building to board their Orion spacecraft atop NASA’s SLS (Space Launch System) rocket as part of the Artemis II Countdown Demonstration Test on Saturday, Dec. 20, 2025 at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Teams monitor the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

From left, NASA astronauts Reid Wiseman, Artemis II commander, Victor Glover, Artemis II pilot, Christina Koch, Artemis II mission specialist and CSA (Canadian Space Agency) astronaut Jeremy Hansen, Artemis II mission specialist, depart the Neil A. Armstrong Operations and Checkout Building to travel to the Vehicle Assembly Building to board their Orion spacecraft atop NASA’s SLS (Space Launch System) rocket as part of the Artemis II Countdown Demonstration Test on Saturday, Dec. 20, 2025 at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch team are simulating the launch day timeline including suit-up, walkout, and climbing in and out of the spacecraft. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Wes Mosedale, NASA test director, monitors the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

From left to right, NASA astronauts Christina Koch, Artemis II mission specialist; Reid Wiseman, Artemis II commander; Victor Glover, Artemis II pilot; and Artemis II mission specialist and CSA (Canadian Space Agency) astronaut Jeremy Hansen conduct suit-up operations inside the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on Monday, Aug. 11, 2025. During a two-day operation, the Artemis II team practiced night-run demonstrations of different launch day scenarios like suit-up operations, walk-out, and arriving at the launch pad for the Artemis II test flight. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.  

From right to left, NASA astronauts Christina Koch, mission specialist; Reid Wiseman, commander; Victor Glover, pilot; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist are seen as they depart the Neil A. Armstrong Operations and Checkout Building to board their Orion spacecraft atop NASA’s Space Launch System rocket inside the Vehicle Assembly Building as part of the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Aubrey Gemignani)

Artemis II crewmember CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist; is seen in the elevator as he arrives with fellow crewmates NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; and Christina Koch, mission specialist; at the 275-foot level of the mobile launcher as they prepare to board their Orion spacecraft atop NASA’s Space Launch System rocket during the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Joel Kowsky)

Teams monitor the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

NASA astronaut Randy Bresnick monitors the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Charlie Blackwell-Thompson, Artemis launch director, and Jeremy Graeber, assistant launch director, monitor the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Teams monitor the progress of a Countdown Demonstration Test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 2 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Aubrey Gemignani)

Lori Glaze, acting associate administrator for NASA's Exploration Systems Development Mission Directorate monitors the progress of a Countdown Demonstration Test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 2 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Aubrey Gemignani)

Jeremy Graeber, assistant launch director, monitors the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Teams monitor the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Teams monitor the progress of a Countdown Demonstration Test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 2 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Aubrey Gemignani)

Artemis II crewmembers NASA astronauts Reid Wiseman, commander; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist are seen exit the elevator at the 275-foot level of the mobile launcher along with fellow crewmates NASA astronauts Victor Glover, pilot; and Christina Koch, mission specialist, as they prepare to board their Orion spacecraft atop NASA’s Space Launch System rocket during the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Joel Kowsky)

Artemis II crewmember NASA astronaut Victor Glover, pilot; left, and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist; are seen in the elevator as they arrives with fellow crewmates NASA astronauts Reid Wiseman, commander; and Christina Koch, mission specialist; at the 275-foot level of the mobile launcher as they prepare to board their Orion spacecraft atop NASA’s Space Launch System rocket during the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Joel Kowsky)

Leaders from NASA’s Stennis Space Center and NASA Shared Services Center visit Jackson, Mississippi, on Feb. 28-29 to share site updates with state leaders during the annual Stennis Day at the Capitol. NASA Stennis is on the front line of the next great era of human space exploration as NASA explores the secrets of the universe for the benefit of all. The south Mississippi center tests propulsion systems and engines helping power Artemis missions on the SLS (Space Launch System) rocket to deep space. Through Artemis, NASA will establish the foundation for long-term scientific exploration at the Moon, land the first woman, first person of color, and first international partner astronaut on the lunar surface, and prepare for human expeditions to Mars. Moving forward, NASA Stennis is working to accelerate the exploration and commercialization of space, innovate to benefit NASA and industry, and leverage assets to stimulate the economy and enhance national security.

Janet Petro, director of NASA's Kennedy Space Center, monitors the progress of a Countdown Demonstration Test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 2 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Aubrey Gemignani)

Charlie Blackwell-Thompson, Artemis launch director, monitors the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Emily Nelson, NASA's chief flight director, and Lori Glaze, acting associate administrator for NASA's Exploration Systems Development Mission Directorate, discuss the progress of a Countdown Demonstration Test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 2 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Aubrey Gemignani)

Jeremy Graeber, assistant launch director, monitors the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Teams monitor the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Lori Glaze, acting associate administrator for NASA's Exploration Systems Development Mission Directorate is interviewed by NASA public affairs officer Steven Siceloff during the Countdown Demonstration Test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist in Firing Room 2 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Aubrey Gemignani)

Charlie Blackwell-Thompson, Artemis launch director, monitors the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

The sun rises shortly before Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist participate in the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Keegan Barber)

From left, Jeff Spaulding, senior NASA test director, and Wes Mosedale, NASA test director, monitor the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Teams monitor the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

The elevator button for the 275-foot level of the mobile launcher is seen teams prepare for Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist; to arrive and board their Orion spacecraft atop NASA’s Space Launch System rocket during the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Joel Kowsky)

From right to left, NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist are seen as they depart the Neil A. Armstrong Operations and Checkout Building to board their Orion spacecraft atop NASA’s Space Launch System rocket inside the Vehicle Assembly Building as part of the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Aubrey Gemignani)

The astronaut transport vehicle carrying Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist is seen as it approaches the Vehicle Assembly Building during the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Keegan Barber)

Taylor Hose, Closeout Crew lead, is seen as he prepares for the arrival of Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist; at the 275-foot level of the mobile launcher to board their Orion spacecraft atop NASA’s Space Launch System rocket during the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Joel Kowsky)

Jeremy Graeber, assistant launch director, monitors the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Leaders from NASA’s Stennis Space Center and NASA Shared Services Center visit Jackson, Mississippi, on Feb. 28-29 to share site updates with state leaders during the annual Stennis Day at the Capitol. NASA Stennis is on the front line of the next great era of human space exploration as NASA explores the secrets of the universe for the benefit of all. The south Mississippi center tests propulsion systems and engines helping power Artemis missions on the SLS (Space Launch System) rocket to deep space. Through Artemis, NASA will establish the foundation for long-term scientific exploration at the Moon, land the first woman, first person of color, and first international partner astronaut on the lunar surface, and prepare for human expeditions to Mars. Moving forward, NASA Stennis is working to accelerate the exploration and commercialization of space, innovate to benefit NASA and industry, and leverage assets to stimulate the economy and enhance national security.

Leaders from NASA’s Stennis Space Center and NASA Shared Services Center visit Jackson, Mississippi, on Feb. 28-29 to share site updates with state leaders during the annual Stennis Day at the Capitol. NASA Stennis is on the front line of the next great era of human space exploration as NASA explores the secrets of the universe for the benefit of all. The south Mississippi center tests propulsion systems and engines helping power Artemis missions on the SLS (Space Launch System) rocket to deep space. Through Artemis, NASA will establish the foundation for long-term scientific exploration at the Moon, land the first woman, first person of color, and first international partner astronaut on the lunar surface, and prepare for human expeditions to Mars. Moving forward, NASA Stennis is working to accelerate the exploration and commercialization of space, innovate to benefit NASA and industry, and leverage assets to stimulate the economy and enhance national security.

NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist are seen as they depart the Neil A. Armstrong Operations and Checkout Building to board their Orion spacecraft atop NASA’s Space Launch System rocket inside the Vehicle Assembly Building as part of the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Aubrey Gemignani)

Dan Florez, NASA test director (second from right), monitors the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Teams monitor the progress of a Countdown Demonstration Test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 2 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Aubrey Gemignani)

Bill Owens of the Closeout Crew is seen as he leads Artemis II crewmembers CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist; and NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; and Christina Koch, mission specialist; out of at the elevator towards the crew access arm at the 275-foot level of the mobile launcher as they prepare to board their Orion spacecraft atop NASA’s Space Launch System rocket during the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Joel Kowsky)

From right, Shawn Quinn NASA’s Exploration Ground Systems program manager; Cliff Lanham, NASA’s Exploration Ground Systems deputy program manager; and Howard Hu, Orion program manager, monitor the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Teams monitor the progress of a countdown demonstration test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 1 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all.

Leaders from NASA’s Stennis Space Center and NASA Shared Services Center visit Jackson, Mississippi, on Feb. 28-29 to share site updates with state leaders during the annual Stennis Day at the Capitol. NASA Stennis is on the front line of the next great era of human space exploration as NASA explores the secrets of the universe for the benefit of all. The south Mississippi center tests propulsion systems and engines helping power Artemis missions on the SLS (Space Launch System) rocket to deep space. Through Artemis, NASA will establish the foundation for long-term scientific exploration at the Moon, land the first woman, first person of color, and first international partner astronaut on the lunar surface, and prepare for human expeditions to Mars. Moving forward, NASA Stennis is working to accelerate the exploration and commercialization of space, innovate to benefit NASA and industry, and leverage assets to stimulate the economy and enhance national security.

Lori Glaze, acting associate administrator for NASA's Exploration Systems Development Mission Directorate monitors the progress of a Countdown Demonstration Test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 2 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Aubrey Gemignani)

Bill Owens of the Closeout Crew leads the Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist; from the elevator at the 275-foot level of the mobile launcher to the crew access arm as they prepare to board their Orion spacecraft atop NASA’s Space Launch System rocket during the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Joel Kowsky)

Teams monitor the progress of a Countdown Demonstration Test with Artemis II crewmembers NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist onboard their Orion spacecraft from Firing Room 2 of the Rocco A. Petrone Launch Control Center, Saturday, Dec. 20, 2025, at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Aubrey Gemignani)

Artemis II crewmember NASA astronaut Reid Wiseman, commander; is seen on the crew access arm at the 275-foot level of the mobile launcher as he and fellow crewmates NASA astronauts Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist; prepare to board their Orion spacecraft atop NASA’s Space Launch System rocket during the Artemis II countdown demonstration test, Saturday, Dec. 20, 2025, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. For this operation, the Artemis II crew and launch teams are simulating the launch day timeline including suit-up, walkout, and spacecraft ingress and egress. Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars, for the benefit of all. Photo Credit: (NASA/Joel Kowsky)

Leaders from NASA’s Stennis Space Center and NASA Shared Services Center visit Jackson, Mississippi, on Feb. 28-29 to share site updates with state leaders during the annual Stennis Day at the Capitol. NASA Stennis is on the front line of the next great era of human space exploration as NASA explores the secrets of the universe for the benefit of all. The south Mississippi center tests propulsion systems and engines helping power Artemis missions on the SLS (Space Launch System) rocket to deep space. Through Artemis, NASA will establish the foundation for long-term scientific exploration at the Moon, land the first woman, first person of color, and first international partner astronaut on the lunar surface, and prepare for human expeditions to Mars. Moving forward, NASA Stennis is working to accelerate the exploration and commercialization of space, innovate to benefit NASA and industry, and leverage assets to stimulate the economy and enhance national security.