Early Apollo Missions: Earth Orbit Apollo missions flew unmanned until October 11, 1968, when Wally Schirra, Donn Eisele and ...
11don MSN
Apollo 12 lunar module impact: NASA crash tested moon’s seismology; myth of hollowness debunked
In November 1969, Apollo 12 astronauts deliberately crashed the lunar module’s empty ascent stage into the Moon to create a controlled seismic signal. The impact was detected by the Passive Seismic ...
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