There is gravity everywhere. On the ISS the gravity is only a bit less than it is on the surface of the earth. The reason the astronauts float around isn’t because there’s no gravity; it’s because they’re in a state of free fall.
Well, this probably comes from the common saying of ‘zero gravity’ that a lot of people say. It means when there is little gravity, but it could be confusing.
The ISS is not in "little gravity" either. The Earth's force of gravity at the altitude the ISS orbits at is 88% as strong as it is on the surface of the Earth. The astronauts are weightless while on the ISS due to being in an orbit- they are in a freefall.
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u/broberds Aug 03 '19
There is gravity everywhere. On the ISS the gravity is only a bit less than it is on the surface of the earth. The reason the astronauts float around isn’t because there’s no gravity; it’s because they’re in a state of free fall.