I know that Gravity keeps things in the Sun’s orbit (or other stars/planets), but how do they have gravity?
In: Physics
In relativity, everything that has mass or energy warps and stretches space (and time so it’s called spacetime but don’t worry about that for now). If you think about a bowling ball on a trampoline, it “attracts” other things on the trampoline. It’s really hard to imagine in more dimensions than that but everything makes a little (or big) dimple in spacetime. So, things naturally “fall” towards each other.
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