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

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.

NASA has taken another significant step toward returning humans to the Moon. On December 20, 2025, the Artemis II crew and ...

NASA's Ames Research Center in California's Silicon Valley continued to make strides in research, technology, engineering, science, and innovation ...