EM-1 Countdown Demonstration with Cryogenic Loading Simulation

EM-1 Countdown Demonstration with Cryogenic Loading Simulation

Engineers with NASA and contractor Jacobs monitor their consoles during a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for Exploration Mission-1 (EM-1). During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by EM-1 Launch Director Charlie Blackwell-Thompson with Exploration Ground Systems.

Charlie Blackwell-Thompson, right, Exploration Mission-1 (EM-1) launch director, reviews procedures during a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for EM-1. During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by Blackwell-Thompson with Exploration Ground Systems.

Engineers with NASA and contractor Jacobs monitor their consoles during a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for Exploration Mission-1 (EM-1). During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by EM-1 Launch Director Charlie Blackwell-Thompson with Exploration Ground Systems.

Engineers with Exploration Ground Systems monitor their consoles during a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for Exploration Mission-1 (EM-1). During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by EM-1 Launch Director Charlie Blackwell-Thompson with Exploration Ground Systems.

Charlie Blackwell-Thompson, standing, Exploration Mission-1 (EM-1) launch director, leads a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. Seated is Roberta Wyrick, spacecraft test conductor with contractor Jacobs. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for EM-1. During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by Blackwell-Thompson with Exploration Ground Systems.

An engineer with NASA monitors his console during a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for Exploration Mission-1 (EM-1). During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by EM-1 Launch Director Charlie Blackwell-Thompson with Exploration Ground Systems.

Engineers with NASA and contractor Jacobs monitor their consoles during a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for Exploration Mission-1 (EM-1). During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by EM-1 Launch Director Charlie Blackwell-Thompson with Exploration Ground Systems.

Charlie Blackwell-Thompson, at right, Exploration Mission-1 (EM-1) launch director, leads a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. Seated next to her is Jessica Parsons, technical assitant to the launch director. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for EM-1. During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by Blackwell-Thompson with Exploration Ground Systems.

Engineers with NASA and contractor Jacobs monitor their consoles during a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for Exploration Mission-1 (EM-1). During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by EM-1 Launch Director Charlie Blackwell-Thompson with Exploration Ground Systems.

Charlie Blackwell-Thompson, Exploration Mission-1 (EM-1) launch director, leads a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for EM-1. During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by Blackwell-Thompson with Exploration Ground Systems.

Anthony Bharrat, NASA engine avionics engineer, monitors his console during a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for Exploration Mission-1 (EM-1). During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by EM-1 Launch Director Charlie Blackwell-Thompson with Exploration Ground Systems.

Engineers with NASA and contractor Jacobs monitor their consoles during a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for Exploration Mission-1 (EM-1). During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by EM-1 Launch Director Charlie Blackwell-Thompson with Exploration Ground Systems.

Charlie Blackwell-Thompson, far left, Exploration Mission-1 (EM-1) launch director, and engineers with NASA and Jacobs, participate in a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for EM-1. During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by Blackwell-Thompson with Exploration Ground Systems.

From left, Jeremy Graeber, chief NASA test director; Jessica Parsons, technical assistant to the launch director; and Charlie Blackwell-Thompson, Exploration Mission-1 (EM-1) launch director, participate in a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for Exploration Mission-1 (EM-1). During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by Blackwell-Thompson with Exploration Ground Systems.

From left, Jeremy Graeber, chief NASA test director; Jessica Parsons, technical assistant to the launch director; and Charlie Blackwell-Thompson, Exploration Mission-1 (EM-1) launch director, participate in a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for Exploration Mission-1 (EM-1). During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by Blackwell-Thompson with Exploration Ground Systems.

Tom Clark, standing, a manager with contractor ERC, works with Quentin Jones and Emily Hadley, both mechanical engineers for the liquid oxygen system, with ERC, during a countdown demonstration event of cryogenic propellant loading April 12, 2019, inside Firing Room 2 in the Launch Control Center at NASA’s Kennedy Space Center in Florida. The practice simulation involved loading of liquid hydrogen and liquid oxygen into the Space Launch System rocket’s core and upper stages to prepare for Exploration Mission-1 (EM-1). During the tanking exercise, the team worked through surprise issues in real-time. The practice countdown events are training opportunities coordinated by EM-1 Launch Director Charlie Blackwell-Thompson with Exploration Ground Systems.

Michael Guzman, an umbilical engineer, monitors his console in Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida, during a terminal countdown demonstration for Exploration Mission 1, or EM-1, on Dec. 14, 2018. The launch will be the first integrated test of the Space Launch System rocket and Orion spacecraft that will eventually take astronauts beyond low-Earth orbit to destinations such as the Moon and Mars. The countdown demonstration was intended to validate the launch team's capability to perform an EM-1 countdown and respond to challenges put into the system for practice.

Mark Tripp, center, monitors his console in Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida, during a terminal countdown demonstration for Exploration Mission 1, or EM-1, on Dec. 14, 2018. The launch will be the first integrated test of the Space Launch System rocket and Orion spacecraft that will eventually take astronauts beyond low-Earth orbit to destinations such as the Moon and Mars. The countdown demonstration was intended to validate the launch team's capability to perform an EM-1 countdown and respond to challenges put into the system for practice.

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

Will Sattler of the Closeout Crew is seen on the crew access arm just outside of the white room awaiting 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 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 Christina Koch, mission specialist, is seen inside the white room at the 275-foot level of the mobile launcher she and fellow crewmates NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; 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)

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)

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)

CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist is seen as he can his crew mates NASA astronauts Reid Wiseman, commander (not pictured); Victor Glover, pilot; and Christina Koch, mission specialist 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)

NASA astronaut Reid Wiseman, commander is seen as he and crew mates Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist, not pictured, 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)

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)

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)

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)

Taylor Hose, left, Christian Warriner, center, and Will Sattler of the Closeout Crew are seen 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, 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)

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 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)

NASA’s Space Launch System rocket is seen inside high bay 3 of the Vehicle Assembly Building 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; board their Orion spacecraft atop the rocket during 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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

Emily Nelson, NASA's chief flight director, Lori Glaze, acting associate administrator for NASA's Exploration Systems Development Mission Directorate, and Stephanie Schierholz, chief of staff 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)

Left to right, Adam Steltzner, engineering advisor to the NASA Associate Administrator, 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)

Closeout Crew lead Taylor Hose, second from left, talks with NASA astronaut Andre Douglas, second from right as he and closeout crewmembers Will Sattler, left, and Christian Warriner 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, 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)

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)

NASA astronauts Victor Glover, pilot, front left; Reid Wiseman, commander, front right; Christina Koch, mission specialist, back right; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist, back left, 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)

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)

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)

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)

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)

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; are led by Bill Owens of the Closeout Crew 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)

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)

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)

From left to right, Janet Petro, director of NASA's Kennedy Space Center, Lori Glaze, associate administrator for NASA's Exploration Systems Development Mission Directorate, Adam Steltzner, engineering advisor to the NASA Associate Administrator, and Stephanie Schierholz, chief of staff for NASA's Exploration Systems Development Mission Directorate, wave goodbye to NASA astronauts Reid Wiseman, commander; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist 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)

Left, Janet Petro, director of NASA's Kennedy Space Center, Lori Glaze, associate administrator for NASA's Exploration Systems Development Mission Directorate, Adam Steltzner, engineering advisor to the NASA Associate Administrator, and Stephanie Schierholz, chief of staff for NASA's Exploration Systems Development Mission Directorate, wave goodbye to NASA astronauts Reid Wiseman, commander, not pictured; Victor Glover, pilot; Christina Koch, mission specialist; and CSA (Canadian Space Agency) astronaut Jeremy Hansen, mission specialist 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)

NASA Launch Director Charlie Blackwell-Thompson stands next to her console in Firing Room 1 at the Kennedy Space Center's Launch Control Center during a terminal countdown demonstration for Exploration Mission 1, or EM-1. The launch will be the first integrated test of the Space Launch System rocket and Orion spacecraft that will eventually take astronauts beyond low-Earth orbit to destinations such as the Moon and Mars. Taking place on Dec. 14, 2018, the countdown demonstration was intended to validate the launch team's capability to perform an EM-1 countdown and respond to challenges put into the system for practice.

NASA Launch Director Charlie Blackwell-Thompson makes notes at her console in Firing Room 1 at the Kennedy Space Center's Launch Control Center during a terminal countdown demonstration for Exploration Mission 1, or EM-1. The launch will be the first integrated test of the Space Launch System rocket and Orion spacecraft that will eventually take astronauts beyond low-Earth orbit to destinations such as the Moon and Mars. Taking place on Dec. 14, 2018, the countdown demonstration was intended to validate the launch team's capability to perform an EM-1 countdown and respond to challenges put into the system for practice.

NASA Launch Director Charlie Blackwell-Thompson looks out over Firing Room 1 in the Launch Control Center at NASA’s Kennedy Space Center in Florida during a terminal countdown demonstration for Exploration Mission 1, or EM-1, on Dec. 14, 2018. The launch will be the first integrated test of the Space Launch System rocket and Orion spacecraft that will eventually take astronauts beyond low-Earth orbit to destinations such as the Moon and Mars. The countdown demonstration was intended to validate the launch team's capability to perform an EM-1 countdown and respond to challenges put into the system for practice.

An overall view of Firing Room 1 at the Kennedy Space Center's Launch Control Center shows the launch team at work during a terminal countdown demonstration for Exploration Mission 1, or EM-1. The launch will be the first integrated test of the Space Launch System rocket and Orion spacecraft that will eventually take astronauts beyond low-Earth orbit to destinations such as the Moon and Mars. Taking place on Dec. 14, 2018, the countdown demonstration was intended to validate the launch team's capability to perform an EM-1 countdown and respond to challenges put into the system for practice.

NASA Launch Director Charlie Blackwell-Thompson stands next to her console in Firing Room 1 at the Kennedy Space Center's Launch Control Center during a terminal countdown demonstration for Exploration Mission 1, or EM-1. The launch will be the first integrated test of the Space Launch System rocket and Orion spacecraft that will eventually take astronauts beyond low-Earth orbit to destinations such as the Moon and Mars. Taking place on Dec. 14, 2018, the countdown demonstration was intended to validate the launch team's capability to perform an EM-1 countdown and respond to challenges put into the system for practice.

Special ground support equipment is used to position one of two side flame deflectors underneath the mobile launcher for Artemis I during a countdown demonstration test at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 23, 2020. The nearly 400-foot-tall mobile launcher is at the pad while engineers with Exploration Ground Systems and Jacobs complete several tasks, including a timing test to validate the launch team’s countdown timeline, and a thorough, top-to-bottom wash down of the mobile launcher to remove any debris remaining from construction and installation of the umbilical arms. Artemis I will test the Orion spacecraft and Space Launch System as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA will land the first woman and the next man on the Moon in 2024.

Special ground support equipment is used to move the side flame deflectors into place during a countdown demonstration test using the mobile launcher for the Artemis I mission at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 23, 2020. The nearly 400-foot-tall mobile launcher is at the pad while engineers with Exploration Ground Systems and Jacobs complete several tasks, including a timing test to validate the launch team’s countdown timeline, and a thorough, top-to-bottom wash down of the mobile launcher to remove any debris remaining from construction and installation of the umbilical arms. Artemis I will test the Orion spacecraft and Space Launch System as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA will land the first woman and the next man on the Moon in 2024.

Special ground support equipment is used to move the side flame deflectors into place during a countdown demonstration test using the mobile launcher for the Artemis I mission at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 23, 2020. The nearly 400-foot-tall mobile launcher is at the pad while engineers with Exploration Ground Systems and Jacobs complete several tasks, including a timing test to validate the launch team’s countdown timeline, and a thorough, top-to-bottom wash down of the mobile launcher to remove any debris remaining from construction and installation of the umbilical arms. Artemis I will test the Orion spacecraft and Space Launch System as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA will land the first woman and the next man on the Moon in 2024.

A view of the mobile launcher for Artemis I with the two side flame deflectors positioned underneath during a countdown demonstration test at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 23, 2020. Also in view is the main flame deflector in the flame trench. The nearly 400-foot-tall mobile launcher is at the pad while engineers with Exploration Ground Systems and Jacobs complete several tasks, including a timing test to validate the launch team’s countdown timeline, and a thorough, top-to-bottom wash down of the mobile launcher to remove any debris remaining from construction and installation of the umbilical arms. Artemis I will test the Orion spacecraft and Space Launch System as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA will land the first woman and the next man on the Moon in 2024.

Workers stand on the surface of Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 23, 2020. They are monitoring launch countdown timeline demonstration activities occurring on the mobile launcher for Artemis I. The nearly 400-foot-tall mobile launcher is at the pad while engineers with Exploration Ground Systems and Jacobs complete several tasks, including a timing test to validate the launch team’s countdown timeline, and a thorough, top-to-bottom wash down of the mobile launcher to remove any debris remaining from construction and installation of the umbilical arms. Artemis I will test the Orion spacecraft and Space Launch System as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA will land the first woman and the next man on the Moon in 2024.

Special ground support equipment is used to position the two side flame deflectors underneath the mobile launcher for Artemis I during a countdown demonstration test at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 23, 2020. The nearly 400-foot-tall mobile launcher is at the pad while engineers with Exploration Ground Systems and Jacobs complete several tasks, including a timing test to validate the launch team’s countdown timeline, and a thorough, top-to-bottom wash down of the mobile launcher to remove any debris remaining from construction and installation of the umbilical arms. Artemis I will test the Orion spacecraft and Space Launch System as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA will land the first woman and the next man on the Moon in 2024.

Special ground support equipment is used to position the two side flame deflectors underneath the mobile launcher for Artemis I during a countdown demonstration test at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 23, 2020. The nearly 400-foot-tall mobile launcher is at the pad while engineers with Exploration Ground Systems and Jacobs complete several tasks, including a timing test to validate the launch team’s countdown timeline, and a thorough, top-to-bottom wash down of the mobile launcher to remove any debris remaining from construction and installation of the umbilical arms. Artemis I will test the Orion spacecraft and Space Launch System as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA will land the first woman and the next man on the Moon in 2024.

A close-up view of the mobile launcher for Artemis I with the two side flame deflectors positioned underneath during a countdown demonstration test at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 23, 2020. Also in view is the main flame deflector in the flame trench. The nearly 400-foot-tall mobile launcher is at the pad while engineers with Exploration Ground Systems and Jacobs complete several tasks, including a timing test to validate the launch team’s countdown timeline, and a thorough, top-to-bottom wash down of the mobile launcher to remove any debris remaining from construction and installation of the umbilical arms. Artemis I will test the Orion spacecraft and Space Launch System as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA will land the first woman and the next man on the Moon in 2024.

A close-up view of the base of one of the side flame deflectors positioned underneath the mobile launcher for Artemis I during a countdown demonstration test at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 23, 2020. The nearly 400-foot-tall mobile launcher is at the pad while engineers with Exploration Ground Systems and Jacobs complete several tasks, including a timing test to validate the launch team’s countdown timeline, and a thorough, top-to-bottom wash down of the mobile launcher to remove any debris remaining from construction and installation of the umbilical arms. Artemis I will test the Orion spacecraft and Space Launch System as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA will land the first woman and the next man on the Moon in 2024.

The base of the mobile launcher for Artemis I is in view on Launch Pad 3B at NASA’s Kennedy Space Center in Florida on Oct. 23, 2020. Workers on scaffolding are preparing for a launch countdown demonstration. The nearly 400-foot-tall mobile launcher will remain at the pad while engineers with Exploration Ground Systems and Jacobs complete several tasks, including a timing test to validate the launch team’s countdown timeline, and a thorough, top-to-bottom wash down of the mobile launcher to remove any debris remaining from construction and installation of the umbilical arms. Artemis I will test the Orion spacecraft and Space Launch System as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA will land the first woman and the next man on the Moon in 2024.

Technicians help move the side flame deflectors into place during a countdown demonstration test using the mobile launcher for the Artemis I mission at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 23, 2020. The nearly 400-foot-tall mobile launcher is at the pad while engineers with Exploration Ground Systems and Jacobs complete several tasks, including a timing test to validate the launch team’s countdown timeline, and a thorough, top-to-bottom wash down of the mobile launcher to remove any debris remaining from construction and installation of the umbilical arms. Artemis I will test the Orion spacecraft and Space Launch System as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA will land the first woman and the next man on the Moon in 2024.

Special ground support equipment is used to move the side flame deflectors into place during a countdown demonstration test using the mobile launcher for the Artemis I mission at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 23, 2020. The nearly 400-foot-tall mobile launcher is at the pad while engineers with Exploration Ground Systems and Jacobs complete several tasks, including a timing test to validate the launch team’s countdown timeline, and a thorough, top-to-bottom wash down of the mobile launcher to remove any debris remaining from construction and installation of the umbilical arms. Artemis I will test the Orion spacecraft and Space Launch System as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA will land the first woman and the next man on the Moon in 2024.

Special ground support equipment is used to move one of two side flame deflectors underneath the mobile launcher for Artemis I during a countdown demonstration test at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 23, 2020. The nearly 400-foot-tall mobile launcher is at the pad while engineers with Exploration Ground Systems and Jacobs complete several tasks, including a timing test to validate the launch team’s countdown timeline, and a thorough, top-to-bottom wash down of the mobile launcher to remove any debris remaining from construction and installation of the umbilical arms. Artemis I will test the Orion spacecraft and Space Launch System as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA will land the first woman and the next man on the Moon in 2024.