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Sentences with phrase «human spaceflight began»
It has been clear since
human spaceflight began
that astronauts are susceptible to illness.
https://www.newscientist.com/
Not exact matches
As the American
human
spaceflight
program
began
to build momentum, the nation started experimenting with chimpanzees, which are larger and more closely related to
humans
than are rhesus, squirrel or other monkeys.
https://www.scientificamerican.com/
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