Ever thought the Earth was flat? No? Good, welcome to the new millennia.

Flat earth is actually a relatively new concept. While early humans likely thought that the Earth was flat, we’ve been pretty sure about the round earth since at least the 4th or 5th century B.C., and the idea became common knowledge soon after. That means that those who believe it today are a) actually proposing a new theory of Earth, and b) are idiots.

That said, these people occasionally need a few pushes to put them in their place. This most recent one comes from an astronaut who filmed themselves observing the Earth from space. Still don’t believe it? I can’t help you there.