The question specified astronauts, which specified a sphere less than half a million km from Earth (no one's been farther away then the Moon), even at that distance the gravitational field of the Earth still gives them an acceleration of about which is definitely not weightless.
Originally Posted by Perikles
The ISS (and LEO in general) is assumed as that's the only place to find astronauts now.
Reductionist and proud of it.
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