Why is Earth’s gravity strong enough to keep the Moon in orbit but not strong enough to prevent astronauts in space from floating?

Question

Why is Earth’s gravity strong enough to keep the Moon in orbit but not strong enough to prevent astronauts in space from floating?

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Answer 1

The ISS is moving sideways at around five miles per second. It, and the astronauts inside it, are in orbit. They only look like they’re floating because when we film astronauts, we film them from inside the ISS, so the camera is moving along with the astronauts. If we looked from the ground, we would see they are orbiting the Earth just like the moon is.