The fireworks set off across Los Angeles were so bright, astronauts spotted them from space.
A rare asteroid will be visible to the naked eye in a rare Earth flyby, according to astronomers.
Artemis III, another test flight, is scheduled to blast off next year.
The Artemis II astronauts received a thunderous welcome home from hundreds who took part in NASA's lunar comeback that set a record for deep space travel.
The Artemis II crew has successfully splashed down in the Pacific Ocean after an historic moon mission.
Artemis II was a nearly 700,000 mile trip for the astronauts, and one that had all Americans on the edge of their seat as they made it back home, including people across the Chicago area.