Astronauts in the space station feel weightless as they orbit the earth because there is no gravity acting on them.

Question

Quizplus · Accepted Answer

Though astronauts in the space station feel weightless, it is not because there is no gravity acting on them. They are actually in free fall, constantly falling towards the Earth due to the Earth's gravity, but they are also moving forward at a fast enough speed that they keep missing the Earth and instead orbit around it. This creates an apparent weightlessness or "zero-g" environment.

Astronauts in the Space Station Feel Weightless as They Orbit