if perpetual motion is impossible, why/how do planets orbit and spin continually?

Question

if perpetual motion is impossible, why/how do planets orbit and spin continually?

In: Physics

Answer 1

Planets are very very very very slowly falling towards the sun they are orbiting. It will take billions of years for the earth to fall into the sun, a very long time but eventually it will happen.

Try googling “Heat death of the universe”