Artemis II Pre-Flight Egress Fitness Standard Measures Test

Artemis II astronaut Christina Koch performing various pre-flight tasks for Artemis Spaceflight Standard Measures Test in xEMU space suit. Location: Bldg. 9 ARGOS. Date: 12/12/2025. Photo credit: NASA/Helen Arase Vargas

Artemis II astronaut Christina Koch kneels to complete simulated scientific sample of a surface rock as part of the Egress Fitness Tasks during the Artemis Spaceflight Standard Measures Test at NASA’s Johnson Space Center on Dec. 12, 2025. (NASA/Helen Arase Vargas)