23Astronauts on the orbiting space shuttle are weightless because... there is no gravity in space and they do not weigh anything.space is a vacuum and there is no gravity in a vacuum.space is a vacuum and there is no air resistance in a vacuum.the astronauts are far from earth's surface at a location where gravitation has a minimal effect.
24The Big Misconception"Doesn't a massive object accelerate at a greater rate than a less massive object?".
25Falling and Satellite Motion What does falling have to do with keeping a satellite in orbit?
26What if there where no gravity? Satellite MotionWhat if there where no gravity?
27Falling into the EarthA satellite does fall towards the Earth; only it never falls into the Earth.