Solved: During the Apollo Moon landings, one astronaut remained with the command module
Chapter 8, Problem 39(choose chapter or problem)
During the Apollo Moon landings, one astronaut remained with the command module in lunar orbit, about 130 km above the surface. For half of each orbit, this astronaut was completely cut off from the rest of humanity as the spacecraft rounded the far side of the Moon. How long did this period last?
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