/sci/ - Science & Math

>>10080083
Gravity is not a force. Here, this picture will help. On the left, you have space without gravity. When you go in a straight line, you go in a straight line.

On the right, you have a large body causing gravity. Note the curved space. If you try to go in a straight line, you will instead be going towards the source of gravity.

>But gravity works regardless of whether you're in motion.

What I just gave you is basically a very dumbed down version of how it really works. You have to remember it's not just space, but spacetime itself which is bent. You may be immobile in space, but you're still in motion in time, and thus your straight line is curving into the gravity source.