Gravity depends on how far apart the objects are and how massive the objects are.

Here's a breakdown:

* Distance: The further apart two objects are, the weaker the gravitational force between them. This is why you feel the Earth's gravity strongly when you're standing on its surface, but much less strongly when you're in space.

* Mass: The more massive an object is, the stronger its gravitational pull. This is why the Earth has a much stronger gravitational pull than the Moon, even though the Moon is closer to us.

Let me know if you want to know more about gravity!