Why are their so many planets and earth is the ony planet with life?

Question

why don't the other planets have human or alien life on them. do you believe that there life out there further away? or are we the only ones

Answer 1

It's statistically a dead certainty that there will be other life in the universe. In fact, there is already some controversy as to whether there is evidence of life on Mars, which was a big news story a few years ago. (Microscopic evidence found in certain meteorites could be interpreted as single-celled organisims that that come from Mars.)

The problem looking for life elsewhere in the universe is the incomprehensible size of the universe. If you jumped in your car, drove at the fastest speed your car will go and aimed it at Alpha Centauri (the nearest star to our solar system), you would not get there in your lifetime. You would note get there for many lifetimes. Assuming such a road existed and you could actually drive on it, of course!

I'm certain there is life out there. It won't be human but it will be very interesing.

Answer 2

The reason why Earth is the only known planet that sustains life is that it has the right distance from the sun If the earth was a little further to the sun all the water and cool air would all evaporate and it will become a hot lifeless planet like Venus and if it were a little backward all the water would get frozen and It will become a cold lifeless planet just like Mars.But astronauts and Scientists are still working hard to find out if there are any other planet(s) out there which sustain life maybe there is a planet(s) that sustains life but in may be in another galaxy like the Andromeda galaxy which is about 20,000 light years away from our own galaxy the milkyway galaxy.
THANKS

Answer 3

Earth is (probably) the only planet with life on it in OUR solar system, because life requires water to sustain it, and planets closer to the sun are too hot to maintain a stable water supply, those further away are too cold.

There is ample logical evidence (though no proof, yet) that the universe is teeming with life on other similarly situated planets.

Answer 4

Scientist are still trying to confirm that there isn't life on other planets in our solar system. Which is hard to do since no one has phyiscally been on another planet. Until then its safe to say there is life running around out there somewhere. I'm sure it had to evolve into a extremely tough creature in order to survive. And I wouldn't want to be the one to find it.

Answer 5

Earth is the only known planet with life. We have only explored a few planets. There are billions more that we know almost nothing about.

Answer 6

It is difficult to say why other planets dont have life. But we have an unique situation here so we evolved. But I dont think these condition should exit in order to eveolve a life form.

For sure There are other life forms out there in the universe.

Answer 7

As far as we now know, Earth is the only planet in OUR Solar system that has life. This does not apply to the rest of the Solar systems in the Universe.
But, like I said, it is as far as we NOW know.
When we do finally explore the planets in the outer part of our Solar system we may in fact find life, we just don't know now.

Answer 8

you made an assumption I'll not follow with another the only answer possible is WE DON'T KNOW oh and the so called life zone mentioned above is sci-fi junk we have no idea what conditions life can survive in ( witness the fact that on earth we have life living with no oxygen and in water near the boiling point )

Answer 9

Distance to sun must be in a very small range to support life as we know it. Give we are one small planet in one small system in one small galaxy it seems silly to believe we are the only one with life on it.

Answer 10

We don't have the technology to even make it to he next solar system...76,000 years with our present technology to get to the next closest star ! There has to be other life out there !!