system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do planets like Pluto (and non-planets like the moon) have a seemingly large number of craters in them compared to Earth? Wouldn't a small planet like Pluto be missed by the vast majority of asteroids?
gpt
Earth has an atmosphere that burns up asteroids on entry, and weather that washes and erodes the craters away over time. Smaller planets still are going to get hit by asteroids eventually, over millions of years the odds of being struck, even for a small planetoid, is still inevitable. It's just that without an atmosphere, it's easier to see all of the older craters.