system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 How does space debris not hit and damage the ISS since we know the moon sustains tons of damage from space debris.
gpt
The ISS has whipple shields, which are designed to reduce the impact of space debris.

If there's something coming that's too big for the shields, or it's at risk of hitting a vulnerable part (like the solar panels,) the ISS can undertake some evasive maneuvers.

The moon is much, much, much larger than the ISS. And it doesn't have shields. And it can't undertake evasive maneuvers.