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Birthday · July 29, 2023

Apollo 11: Catching Some Sun

July 29, 2023

The universe is under no obligation to make sense to us, and yet here you are — a collection of atoms that somehow learned to think, to...

Apollo 11: Catching Some Sun

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APOD published July 29, 2023. Full image credits are on the original APOD entry below. A publication-date match, not a photo taken on your date. Independent of NASA.

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Apollo 11: Catching Some Sun

Original APOD · July 29, 2023

Bright sunlight glints as long dark shadows mark this image of the surface of the Moon. It was taken fifty-four years ago, July 20, 1969, by Apollo 11 astronaut Neil Armstrong, the first to walk on the lunar surface. Pictured is the mission's lunar module, the Eagle, and spacesuited lunar module pilot Buzz Aldrin. Aldrin is unfurling a long sheet of foil also known as the Solar Wind Composition Experiment. Exposed facing the Sun, the foil trapped particles streaming outward in the solar wind, catching a sample of material from the Sun itself. Along with moon rocks and lunar soil samples, the solar wind collector was returned for analysis in earthbound laboratories.

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