Why is the moon round?

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The Moon, like the Sun, the Earth and the other planets, is a big round object in space. Sometimes it might not look round.  It might look like a semicircle or a crescent in the sky, but that’s just because the Earth’s shadow covers part of it.  When there’s a full moon, we see the Moon’s full shape, a sphere.  

The moon got its shape because of gravity.  It has gravity just like the Earth does.  Gravity pulls everything to the center of a big object.  That’s why we don’t float off into space. The Earth is pulling us to its center!  

The Moon may have started out as a weird and irregular shape or as a bunch of floating chunks of rocks,  but over time, gravity collected it, pulling and tugging the rocks that make up the Moon together until they were collected into a neat, round ball.  

by   (whyzz writer)
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