r/Damnthatsinteresting • u/StemCellPirate • 13h ago

Video Earth’s evolution measured in galactic years.

947 Upvotes

93% Upvoted

160 comments sorted by

View all comments

Show parent comments

27

u/NachoEvans 12h ago

More mind blowing, there are galaxies that orbit ours, and the Milky Way is in an orbital dance with Andromeda. There are probably larger orbits that we don't see or understand yet, because all of human history has been too short to see or document them.

1

u/sjayvee 12h ago

Is there a science of orbits?? Is the orbiting motion as a force responsible for the expansion of the universe?

14

u/406highlander 12h ago

"Orbital mechanics" is the scientific study of orbits

1

u/sjayvee 12h ago

Fabulous!!! Ty

3

u/concept12345 12h ago

Probably a subreddit for that as well.