What are the odds of there being another 'Earth' in Space?

Question

If the Milky way is one Galaxy out of many,many,many galaxies in space, then what are the odds of there being another 'Earth' somewhere in Space?

What about the odds of another life form existing on a planet just on the Milky way itself?

Answer 1

The odds are pretty good that there is another earth-like planet out there -- somewhere.

The odds are pretty good that there are other life forms out there,  somewhere, too.

But what are the odds that we will ever meet them?  Slim, and none.

The distance between solar systems is just almost unimaginably huge!  26 TRILLION miles to the next Solar System (Alpha Centauri), but so far as we know it doesn't seem hospitable to life. Using the best rockets we've got now, it would take about 120,000 YEARS to get there. Everything else is MUCH farther away. [Intergalatic distances . . . .I can't even begin to imagin]

Now, the laws of physics put some severe bounds on us.  The most significant is what is called the Mass Dilation Effect.  As an object with mass moves faster and faster, it gets more and more massive!  And with increased mass, it requires increased energy to move it.  As a mass approaches the speed of light, the mass of the object approaches infinity.  That means that it requires an infinite amount of energy to move it.

But our universe is (so far as we know) finite, and so contains a finite amount of energy.  It is therefor impossible to move at the speed of light because there isn't enough energy available IN THE WHOLE UNIVERSE to do so.

AND . . .since these other "planets" are also in our universe, they must also follow the same rules of physics.  They can't travel at light speeds, either, so they're not gonna come visit us.

So, due to distance and the law of physics, we are pretty well isolated from any other "earth like" planets, and they are isolated from us.

Until somebody invents Warp Drive (which has its own problems with power requirements . . .) we're all we've got.

Answer 2

D`earth

Answer 3

There are probably other habitable and inhabited planets, but every one of them is an Easter Island. If they don't row their canoes to places where they can find resources, primarily energy resources, soon enough, what technical civilization they had will fall into ruins, permanently. That's about to happen to us.

Answer 4

It makes no difference ,as the distance is so great that it is near impossible to communicate with them.  

Answer 5

In space means the Universe.

So my answer would be that there are 142 Billions of Galaxies out there and every galaxy has about 5 billion stars.

So Earth like Planet would be about Trillions or more.

Life?Well about a Billion.