"Moon's surface is covered in a thick layer of super-sharp dust (called regolith)".

The Moon's surface is covered in a thick layer of ultra-fine, super-sharp dust (called regolith) that behaves like deadly quicksand for spacecraft.

When your lander’s engines fire to slow down, they blast this dust like a sandblaster in every direction (no air to stop it). It blinds your cameras and sensors right when you need to see the ground, damages equipment, and can make the spacecraft sink or tip over on touchdown. It’s like trying to land perfectly while a hurricane of invisible knives is exploding all around you.

This "rocket plume effect" on powdery lunar soil has caused or nearly caused failures in modern missions.