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11 answers

Where's the people's sense of adventure? Gliese 581 C is a probably rocky planet with water, about 5 times the mass of Earth but 60% more gravity at the surface (a 150 pound Earthling would weigh 240 pounds on Gliese 581 C). Yes, it's very close to a red dwarf star, appearing to be about 20 times larger in the sky than our sun, but because it's a cooler star, the net result is that temperatures are very Earth-like. Yes, a year is about 13 Earth days, yes, because of tidal forces between the planet and the red dwarf star, the rotation of the planet is probably "locked", with one perpetually hot face and one perpetually cold face, but think about the complexity and variety of climate and geography on that planet. A huge red sun in a pale greenish-blue sky filled with clouds. I wouldn't be able to resist the opportunity to explore a planet like that, especially if it dangles the possibility that it has a breathable atmosphere. Will man ever reach it? Hey, it's not in the next galaxy, it's only 20 light years away. We will have the means to get there eventually and one way or another. It's the New World all over again.

2007-04-27 13:11:05 · answer #1 · answered by Scythian1950 7 · 0 0

There is a 42% chance of there being life on the new planet. I can't wait until we start communicating with them. Intelligent life happened here, yes, and there are zillions of planets like ours out there. Yes, if p is the probability that life evolved on earth and N = zillions then Np is the expected number of planets like ours with life on them, and so e^−Np = 'tinynumber' is the probability that none of these other planets have intelligent life. The problem is the implicit assumption involved about p - that because there is intelligent life on earth p can't be too small. However all that really matters is that intelligent life evolved in the universe at least once - which of the zillions of actual earth-like planets we happen to find ourself on is irrelevant. So p, the probability of life evolving on any one of these planets (including earth) could be very very tiny, and Np could be about 1. It's like the person who wins a big lottery falsely concluding that because he won, and so many people bought tickets, there must be many others who won, because if the chance of winning was too tiny we wouldn't have won in the first place. So what is the probability of intelligent life elsewhere in the Universe (given that there it exists at least in one place)? It is simply the conditonal Poisson probability (i.e. P(X >= 2jX >= 1)) given by: (1 − e^−l − e^−l)/(1 − e^−l) where l = Np. Of course this can vary from 1 to 0 depending on . For example;
if Np = 1 then the probability of intelligent life elsewhere in the Universe would be
(1 − 2e^−1)/(1 − e^−1) = 42%.

2007-04-27 20:19:25 · answer #2 · answered by Anonymous · 0 0

i think its very intriguing. To find a planet that actually has water in its liquid form. Fascinating. Who knows what kind of life lives on it. And for those of you who say it isn't possible because of the temperature, surely you've heard of evolution.
The mixtures of compounds and elements might have created a life form that isn't carbon based and that can live in colder temperatures. And as for being in perpetual darkness, the lifeforms may have no sight but an extensively acute sense of hearing, echo location etc. The possibilities of what could be there are infinite (as is the possibility of nothing.)

2007-04-27 20:05:39 · answer #3 · answered by Lifeless Energy 5 · 0 0

Its interesting that there might be another planet out there with life on it.thing is theres so many planets the probabilty of their being life out there is very high.i think its very naive to think that there is no life out there but its not gonna change my life if there is life on that planet.if we found out there was what difference would it make to us other than the fact that we'll know its that planet that harbours life.to be honest i think they should put the money they are using for that research and put it to better use.it baffles me why they spend so much money on exploring the universe when theres so many problems on our own planet that the money could go towards helping

2007-04-27 19:59:54 · answer #4 · answered by Anonymous · 0 0

So little is actually known about it, it's pointless to make any guesses. Undoubtedly there are many planets with moderate temperatures and water. That tells us nothing about whether or not they have life as we know it, or even some kind of life that we don't know about.

2007-04-27 19:56:27 · answer #5 · answered by Renaissance Man 5 · 0 0

It is not likely to have life:
1) The star it orbits is a red dwarf and does not produce enough heat.
2) it does not appear to revolve on its own access, which means one side always faces the sun and the other is in darkness.

Tom

2007-04-27 19:56:38 · answer #6 · answered by Anonymous · 1 0

Its mass is so small, that it will not affect significantly, the values of the orbits of the rest.
Its just an anecdotical finding.

2007-04-27 19:55:16 · answer #7 · answered by Sehr_Klug 50 6 · 0 0

i haven't even heard anything about that.

i'm still upset that they decided that pluto wasn't a planet anymore.

2007-04-27 19:56:16 · answer #8 · answered by Shrimptastic 1 · 0 0

i am very happy so there may be hope after all for an alternative to earth ,i hope i live to see it

2007-04-29 04:41:11 · answer #9 · answered by Anonymous · 0 0

eh i wouldet even be able to walk on it lol i dont care let our children have fun with it lol

2007-04-27 19:58:07 · answer #10 · answered by Gerald 2 · 0 0

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