I'm beta reading a story (no one from here) in which there's a interdimensional rift that this guy goes through because he's getting a hundred grand, and then they threaten to kill his girl if he doesn't so he ends of on another planet and there's a war and alkdfjalskjffffffffffffffffffffffffffffffffffffffffffffff Sorry, fell asleep there. The point of this post is that around this other world there is moon with water oceans. The moon is larger then earth's but I'm pretty sure it's too small to have an atmosphere. So (if I understand my science correctly) the sun should turn those oceans into steam in a matter of hours (the surface temperature of the moon in the sun is 123 C). Then all the steam wouldn't have an atmosphere to hold it so I'm pretty sure it would just stream off into space, but that's where my science isn't entirely sure what would happen. I'd like to be able to tell this guy all of the reasons he's wrong, so if anyone know what else would happen, or other reasons it's impossible go for it.