Are there other habitable planets in the universe?

Answer 1

there are probably many billions of habitable planets

but for now theres just earth but 40 years ago the star gliese 581 was discovered,4 planets among it

many were 2 hot but 2 were separated from the rest by scientist,both with water

but 1 of those planets were too far out and was vereh cold, and it was only water

so we are left with gliese 581 g, 3 times earths mass

other than that though its earth

Answer 2

It is hard to be definitive as to whether there are other versions of "us" out there whether as just another planet or an entire universe. But, here are a few answers that are summarized from current scientific conjecture and thinking.

Solar System:Is there another star almost identical to our Sun? Quite probably yes. There are, perhaps, a trillion stars in the Milky Way, and a trillion other galaxies, so the odds are quite good that SOMEWHERE out there, there is a star so close to identical to ours as makes no difference.

Planet:Is there another planet just like the Earth with people like us? Probably not; there are so many possible ways that a planet could develop and life evolve though it's unlikely that it happened exactly the same way twice.

Life:Is there life out there? It is again conjecture, but many many people think this is very likely.

Universe:Is there another universe, perhaps in a "different dimension", similar to ours?
No data exists.. We have no actual evidence that there are any parallel universes, and there is no way that we know of now to test for anything like that.

Other Dimensions:
Given all that, there remain some intriguing issues that give the great scientific minds reasons to wonder whether there are other universes. For one, in the last couple of decades, something called "string theory" has emerged that might describe our universe of 3 space and one time dimension as a slice through a universe that has 12 dimensions. The theory has some broad scientific implications for other theories as an improvement on Einstein's theories for example. Alas, though it is a lovely theory, there has yet been no means of testing it developed. In any case, it has stimulated more questions about universes in "other dimensions."


Other than string theory, there remains the nagging question of the creation of our universe. Even accepting all of the theories around the Big Bang that say the Earth was created out of nothing 13.7 billion years ago, one has no way of saying that other universes were not also created or might currently be being created or might someday just spontaneously erupt in our own universe. So, the reality is we know nothing about this and things can exist that we have never even thought of.

Answer 3

There is no definitive proof of other habitable planets in the universe. However, scientists have identified a number of exoplanets that are within their star's habitable zone, where conditions could allow for the presence of liquid water and potentially support life. Research is ongoing to better understand the potential habitability of these planets.