How specific asteroids and comets make repeat appearances after so many years of space is an endless and ever expanding vacuum.

Question

I feel like the answer can only be “ping pong” with another gravitational body, but that seems far too coincidental.

In: Planetary Science

Answer 1

Asteroids and comets come back because they follow a path, like a race track in space. The Sun and planets act like magnets, pulling them around in circles, so they keep coming back the same way every time. It’s not random, they’re just following their track!