Question

why doesn't the earth fall into sun?

Answer 1

Hey there!

The space have vacuum by which they didn't loose energy.
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<> The earth doesn't fall into the sun because of gravitational pull. The earth try to fall on sun but it fails because of its orbit. The force is pulled to earth by sun and the acceleration of earth is to sun. It happens constantly. So, the earth does not fall into sun.

Hope it Helps you!