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Is there life on Mars? There is now....well potentially
Mars Curiosity rover may have transported Earth bacteria to Mars |
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I believe there's lots of life out there and a very rare bit of it will be what we roughly think of as intelligent.
Similar conditions and processes that gave rise to life on earth could happen elsewhere on a multitude of worlds - and likely have. Even extra terrestrial life elsewhere in our own solar system seems like a reasonable possibility to me, for example on Europa. We have vent ecosystems on planet earth that get their energy from heat and chemicals vented from our planet rather than the sun. Similar ecosystems could exist under the surface of otherwise inhospitable worlds. Quote:
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Life elsewhere in the universe has a lot of chances. Imagine that we are the product of one lineage of life that stretches back all the way to some origin of life (if hard to pinpoint). If that origin hadn't happened or life had completely died out some millions of years later, we wouldn't have been here. But maybe life would have redeveloped in a new lineage or maybe the 30th attempt would have been the successful one. This planet could have animals on it or be inhabited only by unicellular organisms or whatever. It might not be humans, but it would likely be something. I think a likely problem with intelligent life is that it probably tends to eradicate itself by using up and destroying resources and then crashing. Maybe intelligent civilizations only tend to last a short while. |
If you believe in the possibility of extraterrestrial life, then why could they not have visited this planet? I'm not a UFO nut, I don't necessarily believe abductions happen, but I'm not arrogant enough to state they categorically did not. They could have, is what I'm saying. And a lot of the stories abductees tell are remarkably similar. Didn't any of you watch The X-Files?
Is it more stupid to believe in the possibility of life on other worlds (which then allows they may have visited ours) than to put your faith in a concept with no empirical evidence to back it up at all, to believe in a god? I'm not saying there's anything wrong with believing in God or a god, but it's just as much a leap of faith as allowing the chance that some --- probably not all, or even that many, but some --- of these abductees may in fact be recalling actual experiences. I don't know for sure they did, but by the same token you don't know for sure that they didn't, so you have to be open to the possibility. http://img.thesun.co.uk/aidemitlum/a...80_521018a.jpg "You know what, Vort The Invincible? Sometimes I look up at the sky and I wonder ... could there be other intelligent life out there?" |
I believe in life on other planets, but I don't think we've been visited by representatives of other intelligent civilizations. The greatest barriers are space and time and these barriers are generally enormous. Aliens would probably have to cross oceans of time and space to travel from their planet of origin to ours and I just generally believe that it's too big an obstacle. Even if it's not impossible, it is likely to be impractical and so if there are civilizations that colonize space, it doesn't necessarily mean they would travel very far in cosmological terms. If it takes you 50 000 years to get to one planet and 500 years to get to another, the choice seems simple. Still, colonizing space would make a civilization more resistant to dying out and they could radiate out over time, but still ..
There's also a lack of evidence that we've ever been visited. I imagine the only real point of visiting our planet would be because it holds some resource they could use, even if it was just something simple like decent gravity, water and a good temperature. When we look to other planets, we think of whether it's a place we could colonize or perhaps harvest something from .. I assume intelligent aliens would have the same practical sensibilities. If intelligent aliens had visited earth in the past, for example when the dinosaurs were around, I would think they'd build a colony - perhaps bring some alien organisms for agriculture or whatever. There'd be some indication they were here, like a very different lineage of organisms that suddenly seemed to appear in evolutionary history or perhaps even ruins of an ancient civilization. |
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Either way, I won't get my hopes up until there's solid evidence. |
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All you'd need to do was find something like yeast on another planet. I think they've found evidence of underground water on Mars now. @Chula do your thing mate. |
Given the vastness of our own galaxy, only one in a massive number of galaxies in our own local group, and that only a tiny portion of the universe, and given how long the universe is accepted to have existed, I think technologies could exist out there that we have no conception of, and so literally anything could be possible.
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Very informative tore, thanks for posting.
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It's a ROC curve - and a ROC curve that favors false positives since there's no danger in false negatives. If your planet is made entirely of only five or six elements, or has no key elements like oxygen or carbon, the chances of life having formed there are approaching 0. Edit: also your point that it doesn't tell you if life is there is a good one too. Even if carbon and oxygen are there, there's no guarantee that life is there. Of course, this is all in the drake equation. |
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And of course you knew this was coming... http://s.likes-media.com/img/9e47684...a0296.600x.jpg |
I'm open to the possibility as well, but anything supporting that possibility is not present, so saying all those abductees can't be wrong...makes it sound like you've accepted the possibility even though the only evidence is anecdotal.
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Pretty sure they were the ones stole my money though. I mean, I've never even been to Galactic Supply Station K-21, never mind bought a sixpack of triple strength Neptunian brandy... |
I like newts.
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Jesus is dead. Where as I saw a living newt today.
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So we agree newts are better than dead prophets. Good.
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That seems very far fetched to me, but who knows? edit : Regarding abductees, I heard a radio program some years ago in which some professor was talking about mental illnesses and delusions through the ages. Very roughly speaking, he made a point and convincing argument that back in the real good days, delusions used to be religious with people seeing angels or demons and the like until some time after the age of enlightenment where some would think they were abducted and experimented on by scientsts, much like some people believe they've been abducted by UFO's today. The general idea was that these people are just a little nuts and their delusions basically reflect the times. |
It's not far fetched if you think about it. Life wasn't put on Earth, it didn't come into this world, it came out of this world. We're suited to our environment because we were created from the environment. Who's to say lifeforms from and in different environments can't exist without water, oxygen, and other things we deem necessary? Man is not the measure of all things. Man is the measure of man.
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Like Jesus, Jim's dead.
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As far as tore's point about us not being able to recognize alien life, I'm kind of with Hawking on this one. There's no real way to validate either side, but I think the adaptability of life on earth suggests that life forms could adapt to be something like what he describes. Really hard to know for sure, but some of the life on earth is kind of far fetched sounding too. |
What's the difference between Jesus and Jim Morrison?
Nothing, really. I'd probably just nail one and fuck the other. |
Jim Morrisson doesn't exist? News to me.
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It's actually Jim Van Morrissey.
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logic fails me at this time |
Whenever you talk about ****ing someone I just kind of jump to that conclusion.
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Bit harsh no?
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Unless they happen to be Jim Morrison. Or my boyfriend. But I've met plenty of pretty girls that just have the softest faces suitable for kissing. |
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