outer space
any location outside the Earth's atmosphere (Freq. 1) - the astronauts walked in outer space without a tether - the first major milestone in space exploration was in 1957, when the USSR's Sputnik 1 orbited the Earth • Syn: space • Hypernyms: space, infinite, location • Part Holonyms: aerospace • Part Meronyms: interplanetary space, interstellar space, intergalactic space, deep space
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