system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If the universe is constantly expanding at all points, how can earth (and other planets) maintain a cyclic orbit around the Sun?

Wouldn't the distance between the sun and planets slowly increase which would cause them to eventually lose orbit?
gpt
The other answer is wrong. The distance between the earth and the sun is not increasing due to the expansion of space. The gravitational well that is created by our galaxy forbids it. In other words, the gravitational force generated by our entire galaxy counteracts the effects of the expanding universe, and *within* the galaxy (where we live), space is not expanding.