Hydrogen Bomb
This is an actual photo of a hydrogen bomb detonated by the United States at the Bikini Atoll. There were 23 other nuclear devices tested by the U.S. between 1946 and 1958.
Weightlessness
In 1958, scientists were still testing the specifics of weightlessness in space. They decided to use a kitten to test out the theory before moving forward to test with humans.
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