NASA's Artemis II crew runs through launch day countdown test at KSC

A major step toward launch day is complete as NASA's Artemis II astronauts ran through a countdown demonstration test.
Space Coast Daily

Artemis II Flight Crew, Support Teams Complete Pre-Launch Demonstration

NASA’s launch and mission teams, along with the Artemis II crew, completed a key test Dec. 20, a countdown demonstration test, ahead of the Artemis II flight around the Moon early next year.
PRIMETIMER

Artemis II crew boards Orion spacecraft for prelaunch rehearsal

NASA’s Artemis II crew boarded the Orion spacecraft on December 20, 2025, for a countdown demonstration test, rehearsing launch-day procedures at Kennedy Space Center’s Vehicle Assembly Building.