Under the Extraterrestrial Shadow: The Artemis II Total Solar Eclipse Impact on History and Heliophysics

On April 6, 2026, the Artemis II spacecraft Integrity flew around the far side of the Moon, providing humanity with its first crewed return to the Moon since 1972. The crew afterwards observed a total solar eclipse from space —the closest observation of the Moon in totality ever seen. Their recordings under the shadow occurred under 57 minutes of totality. Their observations produced stunning imagery and will yield scientific results in heliophysics and regarding the human factors of space exploration. This mission will serve as a blueprint for astronauts in future journeys to the Moon and beyond. This short paper comments on the important role eclipses play in modern science. Eclipses have been a recurring feature of the history of science, from Aristotle to Galileo to Einstein. Eclipse science in the modern day is a boon to heliophysics, as results generated from the Heliophysics Big Year have advanced our understanding of the solar corona (ESA’s PROBA-3 has produced “artificial eclipses” which produced the most precise eclipse geometry in history). Artemis II provided our generation with its “Apollo” moment, but it is a springboard to a grand achievement in space exploration—permanent lunar colonization. Eclipses have and will contribute fruitful results for 21st-Century science.