The moon is really weird, astronomically. Oddly big for our lil planet Maybe the fact that it's here and we're also here is correlated My guess: Tidal effects from the moon keep the outer core molten, which in turn keeps Earth's magnetic field going, which in turn protects our atmosphere and life

Sometimes I think about whether aliens would be in awe of our uncanny solar eclipses; if in a colonized galaxy Earth would be a huge tourist spot to come watch this super weird thing where the sun and moon perfectly align but maybe every inhabited planet is necessarily Extremely Weird