The universe is huge! Its sheer vastness suggests that there’s some other sentient life out there, just waiting to come to Earth. They’ll meet our sun and our moon, or by their formal names… uh…
Oh. Wait. I’m pretty sure that our sun and moon are named exactly that. The Sun and The Moon. Yup! Nothing more to see here folks! Sure, trillions of other suns and moons might be bigger, hotter, and greener than ours, but these are the official ones! It’s like naming your kid “The Person.” And don’t throw Sol and Luna at me, those are just the same names in Latin.
This just means that when aliens inevitably visit, we’ll have to finally get around to naming these guys. I vote “Big Ted” and “Earth Junior.”