Please Help!! Why does gravity make things spin? Hello, I'm just getting into astronomy. I have tried to google this question many times but I cannot find an answer. I need to know why gravity makes things spin. I can understand the description of looking at space like a flat membrane. Things with mass, like planets, are heavy. And if you put one on this flat membrane it sinks down and bends the membrane down a little. If something gets close enough to this depression, it will slide down this slope, and collide. Essentially gravity. So I can understand this, gravity pulls things together, because the heavier object will have a deeper depression in space, and lighter objects will slide twoard it. But this doesnt explain why it makes things spin. How does gravity make our planet spin on its axis? How does gravity make the planets spin around the sun? Why does the moon spin around the earth and not just collide with it? It doesnt make sense!! Someone help please!