Why do people can't live in other planets?

Answer 1

Simple...atmosphere or lack of it to be more exact;

Answer 2

Depends on the planet.

So far the only planets we have found are not habitable by humans without life support.

Venus is too hot and has too much atmosphere. Mars is too cold and has too little atmosphere. Mercury and most of the moons are airless. The gas giants have no solid surfaces and lack breathable air.



Planetary habitablilty is a complex issue:

For a planet to be habitable by humans without artificial aids, it must have an atmospheric pressure of at least 5 psi, and contain an oxygen* partial bressure between about 3 and 30 psi.

It must receive enough sunlight to allow water to exist in liguid form.

Also it needs to have enough gravity to hold onto its atmosphere, but not so much gravity that we can't support our own weight.

*(It is worth noting that oxygen is highly reactive and will not remain in the atmosphere unless something generates it. On earth, this is accomplished by plant life. So it is highly likely that a planet with oxygen in its atmosphere will already have life.)

Answer 3

Hmmm........live in the planets is a very good idea after all if the surface is to inhospitable just build underground shelters and live down there, dude you might have a winning idea there.

(1.) Underground shelters would provide protection from radiation and micro-meteors.

(2.) The planetary geology might make it possible to use old lava tubes as roads from one underground settlement to another.

(3.) Active planetary geology might make it possible for geothermic power plants to power underground communities.

(4.) Underground communities or settlements would be perfect if they started out as mining operations, the ore could be extracted and smelted on the surface and the tunnels and caverns could be reinforced and turned into living space for future settlers.

(5.) Ores mined from the planet could be sold or traded for supplies from other colonies on other planets in order to become self sufficient.

Answer 4

We are not very popular at the other planets. It would be like an American trying to live in Iran.

Answer 5

In further to other answers, there's also the issue of gravity. We'd be crushed or fly off the planet when we jumped.

Answer 6

There is probably next to nothing on other planets that would enable people to survive.

Answer 7

Because there is no oxygen on other planets, it is too cold for humans to survive, there is no vegetation and there is no protection from uv rays.

Answer 8

There's no atmosphere or oxygen like on Earth so you'd implode from the air pressure.

Answer 9

They don't have atmospheres, and temperatures vary wildly, then there is the lack of water, food and oxygen.

Answer 10

1. they can't breathe.
2. who wants to?