Neil Armstrong, the first human to set foot on the Moon, died today at age 82. A legendary test pilot before he became an astronaut, his big feat (feet?) took place on July 21, 1969, followed by the famous statement analyzed in detail by Wikipedia:
Although the official NASA flight plan called for a crew rest period before extra-vehicular activity, Armstrong requested that the EVA be moved to earlier in the evening, Houston time. Once Armstrong and Aldrin were ready to go outside, Eagle was depressurized, the hatch was opened and Armstrong made his way down the ladder first.
At the bottom of the ladder, Armstrong said “I’m going to step off the LEM now” (referring to the Apollo Lunar Module). He then turned and set his left boot on the surface at 2:56 UTC July 21, 1969, then spoke the famous words “That’s one small step for [a]…
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