Artemis II astronauts preparing for historic lunar flyby
Ahead of the 6 April 2026 lunar flyby, the Artemis II crew completed preparatory activities including reviewing lunar geology training and organising Orion's windows for optimal observation.
The crew had received months of geology training — classroom sessions and field expeditions to Iceland and Canada — to identify and describe lunar surface features including ancient lava flows, impact craters, and compositional variations.
During the flyby's 6-hour science observation window, crew members were assigned specific features to photograph and describe, functioning as field geologists.
NASA's Artemis missions mark a structural shift from Apollo: dedicated Science Officers are now embedded within Mission Control, whereas Apollo had no science representative in the Mission Control front room.
The crew's human eyesight provides scientific advantages over cameras in detecting subtle colour shifts, surface texture variations, and real-time contextual observations.
For the comprehensive account of the Artemis II mission — including mission overview, crew details, far-side science, Artemis program bridges, Apollo comparison, and Artemis Accords context — see the primary enriched article: Artemis II: Humanity's Return to Deep Space
- Lunar flyby window: 6 April 2026, 2:45–9:40 PM EDT; closest approach at ~7:02 PM EDT.
- Closest approach distance: 4,066 miles from the Moon's surface.
- Science observation window: ~6 hours during flyby.
- Far-side coverage: ~20% of the sunlit far side visible from Orion.
- Field geology training sites: Iceland, Canada.
- Apollo comparison: No dedicated science officer in Apollo Mission Control front room; Artemis has certified Artemis Science Officers.
- Human eye advantage: Superior colour discrimination, dynamic range, and contextual awareness compared to cameras.
- Features observed: Orientale basin, Pierazzo crater, Ohm crater — none previously seen by unaided human eyes.