Keep moving J002E3, this is Earth’s turf.

We really do owe the Moon a lot. I mean, she's HUGE compared to the sorts of moons a planet like ours usually gets. A planet our size can usually expect a couple of decent asteroid captures, but nothing like her. And because she's so big, 1/4 of our mass, her gravity deflects so much space crap from coming near us. She's like a big, burly knight with a big shield. I like her.