system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If the 'Giant Impact Hypothesis' for how the moon formed is true, why did the debris form the moon and not rings like Saturn has?
gpt
Two reasons. First, Earth likely did have rings for a while after the impact, but they all collapsed into the Moon due to gravity. Second, unlike with Saturn, the moon was far enough away that it hasn't been torn to shreds by our own gravity, like the cataclysm which likely caused Saturn to have rings in the first place.