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2007-12-22 10:18:28 · 7 answers · asked by g 1 in Science & Mathematics Astronomy & Space

7 answers

Due to the fossils that have been found on Earth, we know that one-celled life was established on Earth almost as soon as it cooled. Unless this was some extraordinary fluke, it impies that life quickly appears anywhere there is a suitable environment.

In recent years many planets have been discovered circling other stars. It is highly likely that most if not all stars have planets of some form, and it would be most surprising if none of them happened to be in a habitable part of their solar systems.

Therefore we can expect that single-celled lifeforms are very common in the universe.

However, it took 4 billion years for complex life to evolve on Earth and technologically cabable lifeforms (ie us) have only been around for a few thousand years.

The major part of the question of the existence of other civilised lifeforms depends on what proportion of the time of a planets existence does it carry advanced life. This involves answering a whole lot of questions about the longevity of the human race and the posthuman future of this planet, and all this speculation is based upon a statistical sample of one (viz the Earth)

But since you asked, I would vote that simple lifeforms are abundant in the universe and that advanced lifeforms are exceedingly rare.

2007-12-22 11:39:25 · answer #1 · answered by Quadrillian 7 · 0 0

So far they have found one celled organisms on mercury or mars. I can't remember. Anybody who says there is no life anywhere else is not very creative in the mind, in my opinion.
Thats it.. so far thats all they have found. They belieive that MAYBE there ONCE was life on mars, but they are not so sure of it. We cannot tell what else there is. You never know. We could be the dumbest species in the universe, or say, maybe we might be the smartest. We cannot tell what is in other dimensions, for we are currently in another. In my religion, I believe that we go to heaven when we die, some say we go somewhere else. If you REALLY think about it, it could go really deep into personal info.

2007-12-22 10:51:26 · answer #2 · answered by l2udawg1974 1 · 0 0

idk really, there are so many other galaxies in the universe, that we can't be too sure if we are the only lifeforms. there could be other planets with other types lifeforms, or people too. we just don't have the technology, yet, to find out. i mean the farthest we have ever sent an actual human was the moon. so maybe we ARE maybe we AREN'T. it's kinda hard to believe that we are the only living lifeforms in the whole UNIVERSE though. i hope this helped, and if it didn't sorry.

2007-12-22 10:31:29 · answer #3 · answered by lulu 2 · 0 0

the question that all scientists want to answer.

they're still looking, but they think that if they can find remnants of water anywhere on any planet, there were probably life there, although it may be small microorganisms. Mars is currently being searched for water or for evidence that water was there.

2007-12-22 10:27:05 · answer #4 · answered by wierddude 3 · 0 0

There is more of a chance of E.T. life then there is of winning the lottery.

2007-12-22 10:25:39 · answer #5 · answered by flesh_of_daisy 4 · 0 0

THE SMART MONEY IS ON YES. JUST LOOK AT THE SIZE OF THE JUST KNOWN UNIVERSE. WE MAY EVEN FIND IT ON ONE OF THE TWO MOONS OF SATURN. EUROPA OR AH SHUCKS I FORGOT THE OTHER NAME.

2007-12-22 10:26:39 · answer #6 · answered by Anonymous · 0 0

There is a very high chance.

2007-12-22 10:26:02 · answer #7 · answered by Anonymous · 0 0

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