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Title: Astronaut John W. Young on the lunar surface
Caption: Astronaut John W. Young leaps from the lunar surface, where gravity pulls at him with only one-sixth the force on Earth.
Notes: If an astronaut has a mass of 72 kg, what would be his mass on the moon? If an astronaut weighs 180 lb on Earth, what would he weigh on the moon?
Keywords: gravity, astronaut, lunar surface, mass