Christina Koch

NASA Artemis II splashes down in Pacific Ocean in ‘perfect’ landing for Moon mission

NASA's Artemis II returns four astronauts safely from a record-breaking 252,760-mile lunar orbit mission, marking humanity's first crewed Moon flight in 50+ years with groundbreaking new surface imagery.

Artemis II and the invisible hazard on the way to the Moon

Artemis II (launched April 2026) deploys advanced radiation dosimetry and organ-chip biomarkers to characterize deep-space radiation effects on human physiology for the first time since Apollo, directly informing safe crewed protocols for lunar and Mars missions.