Posted by **Frank** on Tuesday, January 17, 2012 at 8:25pm.

The International Space Station orbits approximately 350 km above the Earth's surface. (The Earth's radius is 6,378 km.) Are the astronauts beyond the pull of Earth's gravity? Explain your reasoning.

- Astronomy 1010 -
**bobpursley**, Tuesday, January 17, 2012 at 8:28pm
If Earth's gravity was not there, the space station would not be in orbit. What do you think is holding it in orbit?

- Astronomy 1010 -
**victor**, Monday, January 23, 2012 at 9:09am
The ISS is being pulled by everything in the universe. Very little, but its being pulled.

Because Gm1m2/r^2

And you can't divide something and get 0, you can only get close to 0.

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