The use to it is when the world is falling apart or a HUGE valcano blows and it is gonna cover the whole entire earth!
Humans need to bring food, water, oxygen,
They could but, although the experience and views would be out of this world (literally!), it might not be much fun.
Well, in space their is no air, so we obviously air is the number on thing humans would need in space.
Apollo gave evil to humans because he would slaughter them
millions of dollars.
There will not be a hotel on the moon for humans but there would be for aliens. humans cannot live in space.
It would be useful in space flight.
Humans ARE animals. All animals breath oxygen, so all animals would be in trouble in space (unprotected).
No. Humans could not live on Neptune. The planet is extremely cold, its atmosphere is not breathable, and there is no solid surface to stand on. Although in the distant future we could see a space station in orbit around Neptune which would send probes, and ships into the atmosphere for scientific study.
we do not know how to yet, but scientists think wormholes in space are the key. eventhough, if it DID alter your passage through time and space, you would have no idea how. you could end up on the moon in the year 1927, or in the middle of the civil war, or you could bring batteries to cavemen!
Yes, it is.
No, since there is really no 'floor' in space. That would be awesome if you could, though.