Does Earth have a possible twin out there in the universe?

Question

Or is Earth a fluke? Can there really be another Earth type planet out there with 'life' on it?

Answer 1

Considering the number of estimated stars in the universe, it is very likely that there are several Earth-type planets capable of sustaining life.  Whether they actually contain life is a much different story.

Answer 2

Yeah but possible planets are lightyears away we have sent signals which are at very fast speed will only reach the nearest next solar systems in thousands of years and the nearest Earth like planets prossibly 100,000 years and even then how do we know if the life is on our level of knowlegde to communicate or detect or understand our signall at all.

I know its 100% possible but how will we discover each other the distance language etc

Answer 3

Possible but it is so far away there is very little chance we will even communicate with it.  

Answer 4

Given the billions of other worlds out there, it is very likely that there is another planet out there with nearly the same conditions. Somewhat like snowflakes, we have never found two planets that are exactly alike. But statistically, there should be some out there that are very close.  

Answer 5

yeah.I am an Alien and I came from a planet called Htrae ( earth spelled backward ). I came through a teloport to spend my vacation on earth  

Answer 6

  There are likely millions or billions out there somewhere.

Answer 7

If you are merely inquiring about the possibility of extraterrestrial life, there is a good chance that it does exist. However, if you're more interested in "parallel dimension planets" i.e a mirror earth that rotates west and takes 42 hours to do so, has humanoid aliens that walk on their hands etc... then no.

Answer 8

Yes its very possible. I doubt earth is the only planet of its kind.

Answer 9

Of course. There are many million main sequence stars, which have the chance of forming similar planets. But Earth is still a very complicated system, with many stabilizing factors, the chances are not too high finding an exact counterpart. But who tells us that our definition of life is the only possible way?  

Answer 10

I definitely believe it is possible.  How can we be the ONLY ones in this entire, unexplored universe???  I remember as a kid, i asked my mom what was on the other side of a black hole, and she said..."maybe it's a mirror image of this side of it!"...lol

Answer 11

We can't even begin to count the number of stars in our own galaxy, and on top of that we have no idea who many galaxies are out there. There are so many stars in the universe it has gotten to the point it would be silly to assume that there is no other planet like Earth out there. Sure Earth has highly specialized conditions that support life but odds are still in favor that there could be one or several planets similiar to earth.

Now life is a special thing. We can't prove how it has come about so to say there is more life out there is impossible. Odds are in the favor of yes but you just have to decide on your own. Saying there is more super-intelligent life out there is even a farther strech of the odds but still withen the spectrum of belief.

Answer 12

yes the mathematics said there should be 1000s and there are billions of other unverses out there too the universe is about 100,000 light years across. it might be eactly the same size and soft just look at nmars and you can find your answer life out there is 100% we allways look in the light we dont think . I WANT TO ASK YOU SOMETHING DO YOU THINK TIME TRAVEL IS POSSBLE WE MIGHT HAVE THE ANSWER TO THAT  

Answer 13

Sure, it's possible.

Answer 14

The chances are very low but with so many stars are out there those chances start becoming more likely.

Answer 15

The word twin implies an exact copy, and that is absurd.  It couldn't happen in the lifetime of a thousand universes.  But there are probably lots of earth type planets out there with life.  Most of them will have bacteria and only bacteria.  A few will have more advanced cells.  Still fewer will develop animal life.  Maybe, just maybe a tiny fraction might develop some sort of intelligent life.  But such creatures would not resemble us and we will never make their acquaintance. Interstellar distances prohibit that.  

Answer 16

I read somewhere that people used to think Earth had a twin on the other side of the sun, but that has been proved wrong a long time ago. Parallel planetary development and evolution on a 1 to 10 scale of probability would be about minus 10.

http://en.wikipedia.org/wiki/Counter-Ear... this is a wiki article about a counter earth just like i said.

http://en.wikipedia.org/wiki/Twin_Earth_... Here is the twin Earth thought experiment and who came up with the whole idea of a twin Earth.

Answer 17

It is statistically likely, given the incomprehensibly immense size of the universe.  There have been those who speculate that our sun is actually a binary star and that somewhere out there, many parsecs away, is it's twin, named "Nemesis", which even now is at the extreme end of it's elliptical orbit and beginning to fall inward towards us, bearing with it the distinct possibility of our own sun being swallowed up - and Earth with it!  

Y'know, there are all sorts of crackpot ideas like that floating around since Erik von Danniken's fantasy was proven foolishly false...

Answer 18

Absolutely.

Comets seed terrestrial planets with organic compounds. Any planets stably orbiting within their star's habitable zone are likely to harbour life. Main sequence stars form the vast majority of the untold billions in our galaxy and the billions of galaxies in the tiny observable part of our vast universe.

In all these billions of billions of billions of stars, there has to be at least ONE other planet with life on it, doesn't there?

Unfortunately, Earth sized planets are very difficult to detect with today's technology, and even the closest stars are so far away that we are a long way, technologically speaking, from being able to go there.

So, even when we detect a planet, and find evidence of water and organic molecules, we still won't know for certain until we send a probe there.

Voyager is going to take thousands of years to get as far out as Proxima Centauri. That's a long wait...