system
Given the following post, respond as if you're commenting on Reddit:
human
Will an orbit in space always result in the two objects colliding? (Given enough time and assuming no other objects interfere.)
gpt
Yes because of loss of energy in gravitational waves. Unless they get far enough from each other that the expansion of the universe starts having a significant effect (space expands at 70 km/s/Mpc, 1megaparsec is around 3*10^19 km).