2006-10-27 04:43:54 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
So far we've seen no verifiable evidence of other sentient species. That said, I believe with some certainty that somewhere in our galaxy at some past, present, or future time, a sentient species did/does/will exist.
Why haven't we heard from them?
Perhaps they are not technologically advanced to be heard. They may be mastering stone knives right now, or experiencing their own Rennaisance.
Perhaps they are here right now. Any species sufficiently advanced to travel interstellar distances would be able to hide or masquerade with ease. That Boeing 737 that flew by may be a surveillance craft.
Perhaps they are so far away they will never notice us and vice versa.
Perhaps they existed a million years ago and died out.
Perhaps they will exist a million years from now.
It is really impossible to know for sure.
The Drake Equation suggests that there is sentient life out there. The Fermi Paradox casts doubt. Play around with the calculation form at the second link and see what you think.
2006-10-27 05:24:18 · answer #1 · answered by Otis F 7 · 2⤊ 0⤋
Extraterrestrial life is life that may exist and originate outside the planet Earth, the only place in the universe currently known by humans to support life. Its existence is currently hypothetical; there is yet no evidence of extraterrestrial life that has been widely accepted by the scientific community.
Most scientists hold that if extraterrestrial life exists, its evolution would have occurred independently in different places in the universe. An alternative hypothesis, held by a minority, is panspermia, which suggests that life in the universe could have stemmed from a smaller number of points of origin, and then spread across the universe, from habitable planet to habitable planet. These two hypotheses are not mutually exclusive.
2006-10-27 12:00:23 · answer #2 · answered by meodowla 3 · 0⤊ 0⤋
we are all aliens somewhere.
out there? sure many types of life.
Ants travel through space embalmed with latex and formic acid for millions of years preserved by coldness and have collonized and supported alien life on planets in all corners of the universe.
They taught us to be farmers and look after the garden.
There are planets with peple that are different but there are also people who are almost exactly like us and are recognizeable as humans or human like as humans get.
Ob1
2006-10-28 13:39:08 · answer #3 · answered by old_brain 5 · 0⤊ 0⤋
Its a matter of opinion, see the drake equation to see what your beliefs tell you about aliens. Personally, I believe they exist but it is incredibly unlikely they have traveled to earth.
2006-10-27 22:11:31 · answer #4 · answered by elmoreas 1 · 0⤊ 0⤋
YES!!! Aliens are there on their planet.
2006-10-27 11:48:36 · answer #5 · answered by Anonymous · 0⤊ 0⤋
I'd be shocked if there weren't! The sun is one of billions of stars within our own galaxy...and there are billions of galaxies! Frankly, in those terms, the idea that we are the only life in the universe is absurd
2006-10-27 12:02:28 · answer #6 · answered by Anonymous · 0⤊ 0⤋
There, as in where? On other planets. There are definitely other planets that are capable of supporting life and have life on them. There as in Earth, then no. They would not come to Earth.
2006-10-27 12:01:43 · answer #7 · answered by bldudas 4 · 0⤊ 0⤋
yes, there are aliens
2006-10-27 16:19:01 · answer #8 · answered by garrbear99 1 · 0⤊ 0⤋
We are here... take us to your leader!
2006-10-27 11:50:33 · answer #9 · answered by pedrokas007 2 · 0⤊ 0⤋
Here, there, everywhere!
2006-10-27 11:48:03 · answer #10 · answered by noyb 4 · 0⤊ 0⤋