Originally Posted by
Darknes
http:///forum/post/2487631
Naive? Yes, there are billions of galaxies in the universe, and within each of these are billions of stars. Billions x Billions of possibilities. Still, the chance of one supporting life is next to zero.
You have to have a planet with the right size star that isn't too active spewing off lots of radiation
The planet has to be just the right distance from the sun so it's not too hot or cold
The planet must rotate so that the sun doesn't torch one side
The planet must have the correct atmosphere to both block out harmful radiation from the sun but also hold in moisture
The planet must be plentiful in water and other elements necessary for life
etc.
etc.
These are just a few of the many necessary conditions for the simplest lifeforms. Now, for a planet to have an evolved lifeform this planet must be stable for billions of years and must sustain a multitude of other conditions for evolved species.
I'm not saying that it's not possible, but I'm not keeping my hopes up. I'm not being naive, I'm being reasonable.
im sorry but tht is wrong. Life has adapted in incredible conditions. At the bottom of the ocean under intense pressure and extreme cold temperatures, also life has been found around vents at the bottom of the ocean where they vents release toxic gasses and the temperatures of the gas are as hot as the magma that heats it. SO its not tht earth is "normal" and space is weird, its space is normal and earth is weird. We have very mild conditions and we think that is the only way thigs can survive. But we continue to find out we are wrong. We continually discover new species and find and learn things we thought were never possible. So we cant write out the possibliity that there is other intelligent life out there. Life can obvioulsy live in other conditions but we have yet to explore far enough to find it.
Trying to think how big the universe is... well its incredibly difficult to understand the scale of it. So saying that there is not other life out there is ignorant