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Index/Topics/ALSEP

ALSEP

A suite of scientific instruments left on the Moon's surface during the Apollo missions.

Fact-Checks

3 results
Jan 24, 2026
Most Viewed

did humans go to the moon

: multiple independent lines of third‑party evidence — returned examined worldwide, images and terrain data from non‑ lunar orbiters, and ongoing laser reflections from retroreflectors emplaced by Apo...

Jan 31, 2026
Most Viewed

What are the technical photographic explanations for the ‘no stars’ and ‘flag flutter’ anomalies in Apollo images?

The absence of visible stars in is a technical consequence of exposure and contrast choices made to record brightly sunlit lunar terrain and astronauts, not evidence of fakery . The apparent “flutteri...

Jan 10, 2026

What specific dosimetry readings were recorded for each Apollo mission and where are those records archived?

Apollo-era dosimetry produced mission-by-mission personal and passive dosimeter readings (reported as millirads or rads) that are summarized in NASA technical reports and mission reports and discussed...

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