Did you ever think weightlessness (microgravity) would be cool? That it would be just like regular life but without all that bother of lugging around several scores of bodyflesh pounds with your feet?
Well, it may be cool, but it's not just like regular life, and we're not simply talking about nausea and muscle atrophy. We're talking about changes to fundamental aspects of human existence like how water boils, how fires burn, and how we sweat.
You guessed it -- all that is different in space, and Space.com rounds up six of these differences for you. Fair warning, though, if you ever want to go to space: One of these differences is actually quite dangerous.