NASA’s Artemis II crew completed a launch day rehearsal at Kennedy Space Center, practicing countdown procedures, spacecraft boarding and system checks ahead of their 2026 lunar orbit mission.

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

The Orion crew module gets stacked onto the Space Launch System in preparation for the upcoming Artemis 2 mission in early 2026. When you purchase through links on our site, we may earn an affiliate ...

NASA has taken another significant step toward returning humans to the Moon. On December 20, 2025, the Artemis II crew and launch teams completed a major countdown demonstration at the Kennedy Space ...