Why wouldn't there be any life on other planets?

Answer 1

No one knows entirely why other life did not exist on other planets in this solar system. No creature of plant on Earth can survive on other planets (yet) because of the extremem environments. After the ISS is complete in 2010, NASA is planning on working on a moon base which may turn into a colony later and then doing the same with Mars and possible teraforming the planet so that it is inhabitable. Anyway, back to life on other planets. There is a theory that says Mars may have once had life. There appears to be some evidence on the planet that there was.

Note

We are not yet completely sure that there is no life on other planets, but we will know at some point, at least regarding the planets in our solar system. In the universe, the possibilities are so vast, we may never know. The only thing we will be able to prove is that there IS life out there; we can never prove that there is NOT.

[But Outer Space...]

Robert Frost

But outer Space,

At least this far,

For all the fuss

Of the popul ace

Stays more popul ar

Than popul ous.

Another Answer

We have found life on Mars,,,not human beings....but algae (or something close to that) but I think we are on the brink of finding out if there is other life on other planets...... there maybe life on space rocks

Another Answer

There has also been tiny microorganisms on the rock from Mars that landed on Earth and microorganisms are what is found in plants and most other living things. Which means there is a posibility of life being on Mars.

there is probably millions of other life.. even some smater than us. we find sometime in the future

Life could possibaly be on other plants in any shape or form. some life forms may even have a different structure to that of life on earth and might not need the same environment as life on this planet so i believe that it is highly possible that life is on other planets

Answer 2

It all depends on what the environment is like, if evolution can reside on the certain planet, and if there is all the supplies needed for the living being, if the right gas it needs to breathe is there. So if all the conditions are met, there will be life. But so far, the conditions are not met.

Answer 3

There's no good reason why there isn't life on planets outside of the earth - it's just that life as we know it requires a certain sized planet a certain distance from a certain sized star with a certain amount of carbon, hydrogen, and oxygen to work with. We have yet to discover many planets that perfectly fit these requirements, though there may exist life unlike anything on earth on any multitude of other planets.

Answer 4

The reason life does not exist on the other planets of the solar system is that their environments and surfaces are too hostile for life as we know it. Considering even our closest neighbours - Mars and Venus: one is too hot for life, the other totally exists in a state well below freezing point. Further, most planets of the system possess poisonous gases within their atmospheres, or the atmospheres lack sufficient oxygen and the gas is also too thin for proper breathing, etc. Then there is the problem of gravity: the gravity on Jupiter, for instance, is many times that of earth - a person would be crushed. Most of the other planet's surfaces are much more gaseous than that of earth: a human would sink, as in quicksand.

Yet they are necessary for the "Earth" to exist in a stable setting. The mathematical models that have been constructed seem to indicate that if the earth alone existed in the solar system at its current distance from and velocity around the sun, it would not remain constant in this present, historical setting, in distance and trajectory around the sun. So it appears that the other heavenly bodies, in their times, positions, masses, directions, densities and velocities, etc. all serve to stabalize the solar system and maintain it as it currently exists. So the other planets and heavenly bodies are all necessary in holding the entire solar system together.

The import of this to life is evident in that scientists have also stated that if the earth was moved any closer towards the sun, or any further from it in any way, life, as we know it, would quickly die. This is according to accepted science to this stage.

Answer 5

The planets in our solar system dont have life because the condistions are not suitable.

They are either too close to the sun, or too far away (so their temperatures are too extreme) and they don't have the right conditions create an ozone layer.