Reverend AtheiStar Posted September 9, 2006 Share Posted September 9, 2006 http://www.world-science.net/othernews/060906_planets.htm Livable worlds abound, simulations find Sept. 7, 2006 Courtesy University of Colorado at Boulder and World Science staff New computer simulations by astronomers have found that Earth-like planets, warm and wet enough for life, should be common. The simulations focused on a common type of solar system identified before, featuring planets called Hot Jupiters. A third of these systems also produce Earth-like worlds in the computer reenactments, the researchers said. The Hot Jupiters—gas giants that orbit scorchingly close to their sun—are believed to originate further out from the star, then migrate inward. This churns up material along the way in the dusty, planet-forming disk of material encircling the star. Traditionally, astronomers thought this journey would disrupt the formation of other planets in the path. The simulations found the opposite: as they travel inward, Hot Jupiters fling rocky debris outward, where it easily clumps into Earth-like planets. Meanwhile, turbulence in clouds slows down small, icy bodies orbiting far off, so they spiral inward and dump water on the young worlds. These can eventually accumulate oceans miles deep and settle into a life-friendly “habitable zone.” The habitable zone is a theorized region neither too close, nor too far, from the sun for temperatures to support life. “These gas giants cause quite a ruckus,” said Sean Raymond of the University of Colorado at Boulder, a member of the research team. But “we now think there is a new class of ocean-covered, and possibly habitable, planets in solar systems unlike our own.” In the Sept. 8 issue of the research journal Science, the scientists described simulations lasting more than eight months each on more than a dozen desktop computers. The creators plugged in data reflecting current theories on planet formation, starting with “proto-planetary disks” containing more than 1,000 moon-sized, rocky and icy chunks. They played out some 200 million years of planet evolution. Hot Jupiters make up some 40 percent of planets found to date beyond our Solar System, Raymond said, though this number is so high probably because their size and locations make them easy to find. “I think there are definitely habitable planets out there,” he added. “But any life on these planets could be very different from ours.” Link to comment Share on other sites More sharing options...
Legion Posted September 9, 2006 Share Posted September 9, 2006 I have a sneaky suspicion that our galaxy alone harbors a fantastic number of living things. As to whether or not any of it has developed intelligence is, I think, a different kind of assertion. I think that we have many surprises ahead of us. Perhaps when we truely know that we are not alone in this universe, we may begin to stop all the petty quarreling that takes place on this rock we call Earth. Link to comment Share on other sites More sharing options...
Reverend AtheiStar Posted September 10, 2006 Author Share Posted September 10, 2006 I have a sneaky suspicion that our galaxy alone harbors a fantastic number of living things. As to whether or not any of it has developed intelligence is, I think, a different kind of assertion. I think that we have many surprises ahead of us. Perhaps when we truely know that we are not alone in this universe, we may begin to stop all the petty quarreling that takes place on this rock we call Earth. Have you seen the Discovery movie, Alien Planet? They talk about what this would do to our view of ourselves and our place in the universe. They kept comparing it to the great Copernican revolution and how it would change everything. We'll be buying it soon for our son's birthday! I'm just as excited as he is! lol... http://dsc.discovery.com/convergence/alien...lienplanet.html Link to comment Share on other sites More sharing options...
Legion Posted September 10, 2006 Share Posted September 10, 2006 Hey there Reverend. I don't believe that I have seen "Alien Planet." I think that I've seen ads for it though. I am fairly certain that if we found life on another world that it would change things dramatically here. I keep hoping that maybe we might even discover life on Europa. I mean, if it turned out that there was life in our own cosmic backyard then that too would change things too I think. We need a good kick to the system like that I think. Link to comment Share on other sites More sharing options...
Reverend AtheiStar Posted September 10, 2006 Author Share Posted September 10, 2006 Hey there Reverend. I don't believe that I have seen "Alien Planet." I think that I've seen ads for it though. I am fairly certain that if we found life on another world that it would change things dramatically here. I keep hoping that maybe we might even discover life on Europa. I mean, if it turned out that there was life in our own cosmic backyard then that too would change things too I think. We need a good kick to the system like that I think. I'd like to see how the major religions would evolve in reaction to such a finding. You know there'd be bickering and quarreling amongst the sects as to what it meant in relation to their god. This would mean further fragmentation! Link to comment Share on other sites More sharing options...
All Gods Fail Posted September 10, 2006 Share Posted September 10, 2006 I'm pretty confident that life exists on other worlds, possibly intelligent. Actually, it would seem incredible to me if we were the only intelligent life in the universe. I think this recent findings in the hot-Jupiter theory seem to add more weight to the idea life exists elsewhere. I think I can already predict how fundies would react to the news if we did discover any kind of advanced life out there: 1) God created it. And since god gave us dominion, we can do anything we want with it. 2) Satan did it. It's all part of a plot to undermine the faith of the church, like dino bones. 3) Stick fingers in ears and go "La-la-la-la! I can't hear you!" Link to comment Share on other sites More sharing options...
Thurisaz Posted September 10, 2006 Share Posted September 10, 2006 New computer simulations by astronomers have found that Earth-like planets, warm and wet enough for life, should be common. Cool. Next step: To pull our weird species together to find and populate at least one of those planets, to take care for what will happen sooner or later (global disaster, like one niflheluvan asteroid impact, yellowstoone going boom or similar), so that our species doesn't get lost. Just a little bit difficult, but hey, there's always a catch... Link to comment Share on other sites More sharing options...
roman Posted September 10, 2006 Share Posted September 10, 2006 I had thought the prevailing belief was that evolved alien lifeforms would be vaguely humanoid. I didn't realize that the belief now was that other life would be significantly different from humanoid. Link to comment Share on other sites More sharing options...
Legion Posted September 10, 2006 Share Posted September 10, 2006 I suppose Reverend that it would be difficult to anticipate all the effects that the discovery of organisms on another world would generate within humanity. I can't help but think though that given our propensity for us-them kind of thinking that this discovery would be a unifying force on humanity. After all, suddenly there would be a legitimate distintion to be made between us, Earth life, and them, non-Earth life. In addition we would see that we are not so special anymore. It might be a powerful force towards deflating our collective egos. Link to comment Share on other sites More sharing options...
Crunk Bishop Posted September 10, 2006 Share Posted September 10, 2006 y'all should check out SETI and the "Drake Equation." Also, I read a book in an undergrad astronomy class entitled What if the Moon didn't exist?, and in there somewhere is a chapter about how human evolution and planet Earth would be very different if not for the influence of the moon. Link to comment Share on other sites More sharing options...
roman Posted September 10, 2006 Share Posted September 10, 2006 You are so right. Because the Moon causes the tides, it is possible that without the Moon there would be no life on this planet, even though most of us credit the Sun with everything. Link to comment Share on other sites More sharing options...
Crunk Bishop Posted September 10, 2006 Share Posted September 10, 2006 the moon also slowed the planet's rotation due to its gravitational pull. the book I mentioned speculates that if there were no moon... the average wind speed on earth would exceed 300 mph. humans would probably look more like rabbits and live underground. pretty crazy! farfetched, maybe? i like the moon alot more than the sun, so I'm biased. Link to comment Share on other sites More sharing options...
Reverend AtheiStar Posted September 12, 2006 Author Share Posted September 12, 2006 I'm pretty confident that life exists on other worlds, possibly intelligent. Actually, it would seem incredible to me if we were the only intelligent life in the universe. I think this recent findings in the hot-Jupiter theory seem to add more weight to the idea life exists elsewhere. I think I can already predict how fundies would react to the news if we did discover any kind of advanced life out there: 1) God created it. And since god gave us dominion, we can do anything we want with it. 2) Satan did it. It's all part of a plot to undermine the faith of the church, like dino bones. 3) Stick fingers in ears and go "La-la-la-la! I can't hear you!" Jerry Falwell said this about alien beings: "The decline in American pride, patriotism, and piety can be directly attributed to the extensive reading of so-called 'science fiction' by our young people. This poisonous rot about creatures not of God's making, societies of 'aliens' without a good Christian among them, and raw sex between unhuman beings with three heads and God alone knows what sort of reproductive apparatus keeps our young people from realizing the true will of God." ["Can Our Young People Find God in the Pages of Trashy Magazines? No, Of Course Not!", Reader's Digest, , p.142-157, August 1985] It looks like he's strongly with #2! lol... New computer simulations by astronomers have found that Earth-like planets, warm and wet enough for life, should be common. Cool. Next step: To pull our weird species together to find and populate at least one of those planets, to take care for what will happen sooner or later (global disaster, like one niflheluvan asteroid impact, yellowstoone going boom or similar), so that our species doesn't get lost. Just a little bit difficult, but hey, there's always a catch... I'm with you. The more planets we can populate, the less chance we'll be extinguished. Our species will be alive somewhere in the universe. I suppose Reverend that it would be difficult to anticipate all the effects that the discovery of organisms on another world would generate within humanity. I can't help but think though that given our propensity for us-them kind of thinking that this discovery would be a unifying force on humanity. After all, suddenly there would be a legitimate distintion to be made between us, Earth life, and them, non-Earth life. In addition we would see that we are not so special anymore. It might be a powerful force towards deflating our collective egos. Or it might be the end if they are the ame or more intelligent. We have enough war between us without adding other beings to the mix. I really hope it ends up being just lower life forms. Perhaps, though, I'm being too pessimistic. Perhaps if we met another intelligent life form we'd learn volumes from each other and grow from the experience. y'all should check out SETI and the "Drake Equation." Also, I read a book in an undergrad astronomy class entitled What if the Moon didn't exist?, and in there somewhere is a chapter about how human evolution and planet Earth would be very different if not for the influence of the moon. Very interesting! It's a life probability generator! Yeah, I wish we had enough variables in the equation to where we could just plug them al into a evolution simulator to see what came out. Hell, that'd make a great game! Link to comment Share on other sites More sharing options...
Dhampir Posted September 12, 2006 Share Posted September 12, 2006 When I consider all the mechanisms by which our intelligence arose, I wouldn't be too surprised if we were the only intelligent beings, or one of a very few such species in the universe. Pretty sure there's a lot of life elsewhere though, just not intelligent. Link to comment Share on other sites More sharing options...
Reverend AtheiStar Posted September 12, 2006 Author Share Posted September 12, 2006 You are so right. Because the Moon causes the tides, it is possible that without the Moon there would be no life on this planet, even though most of us credit the Sun with everything. Well, if abiogenesis occurred in the ocean and resulted from the sloshing around of the chamical soup, as has been hypothesized, I would think that take the tides away would drastically reduce the likelihood that life would arise. If, however, one of the other hypotheses are correct and it happened somwhere else, life would arise and just turn out different as a few variables would change. the moon also slowed the planet's rotation due to its gravitational pull. the book I mentioned speculates that if there were no moon... the average wind speed on earth would exceed 300 mph. humans would probably look more like rabbits and live underground. pretty crazy! farfetched, maybe? i like the moon alot more than the sun, so I'm biased. Wow! Perhaps we'd all be creatures of the air then. Our entire planetary ecosystem would be suspended in the air! An interesting thought! When I consider all the mechanisms by which our intelligence arose, I wouldn't be too surprised if we were the only intelligent beings, or one of a very few such species in the universe. Pretty sure there's a lot of life elsewhere though, just not intelligent. I think it's better that way, actually. With intelligence comes a lot of responsibility. Civilization requires suppressing a lot of the urges that got your species there in the first place. If we were to come into contact with said intelligent life, what's to say they wouldn't be in some sort of religious Dark Ages? Think of the clash between our earthly religion and one of the aliens! Talk about Holy Wars! Link to comment Share on other sites More sharing options...
scitsofreaky Posted September 12, 2006 Share Posted September 12, 2006 Very interesting! It's a life probability generator! Yeah, I wish we had enough variables in the equation to where we could just plug them al into a evolution simulator to see what came out. Hell, that'd make a great game! Have you heard of the game Spore? Not necessarily the most scientific game, or so it seems now, but it's close (sorta). I had thought the prevailing belief was that evolved alien lifeforms would be vaguely humanoid. I didn't realize that the belief now was that other life would be significantly different from humanoid.Logically there is no reason to think that other life would be humanoid when it isn't even very common here currently, let alone over the entire time life has existed on Earth. Link to comment Share on other sites More sharing options...
Reverend AtheiStar Posted September 12, 2006 Author Share Posted September 12, 2006 Have you heard of the game Spore Actually, I had. I read about this in Discover magazine. This is the first time I've seen the game in action, though. Quite amazing! Link to comment Share on other sites More sharing options...
scitsofreaky Posted September 12, 2006 Share Posted September 12, 2006 Have you heard of the game Spore Actually, I had. I read about this in Discover magazine. This is the first time I've seen the game in action, though. Quite amazing! It does like amazing. There are a couple of online flash games similar to the unicellular part of the game. I've played a couple, but I don't have the website anymore. I'll check digg and see what I can find. Edit: I found one. Link to comment Share on other sites More sharing options...
Legion Posted September 12, 2006 Share Posted September 12, 2006 I suppose Reverend that it would be difficult to anticipate all the effects that the discovery of organisms on another world would generate within humanity. I can't help but think though that given our propensity for us-them kind of thinking that this discovery would be a unifying force on humanity. After all, suddenly there would be a legitimate distintion to be made between us, Earth life, and them, non-Earth life. In addition we would see that we are not so special anymore. It might be a powerful force towards deflating our collective egos. Or it might be the end if they are the ame or more intelligent. We have enough war between us without adding other beings to the mix. I really hope it ends up being just lower life forms. Perhaps, though, I'm being too pessimistic. Perhaps if we met another intelligent life form we'd learn volumes from each other and grow from the experience. If the proportions of life forms on Earth can act as any kind of guide then I imagine that most life in the universe is single cellular. I suppose that I can understand your pessimism regarding a war between the worlds. I think though that it is us that are the warlike organisms. I think that perhaps if we encountered an intelligent species, they would have more to fear from us than we from them. I think that a large possibility exists that we would be in stark terror of them. I mean really, if you ran into a non-humanoid intelligence would you not freak out a little? I think that I would. Who knows though? Perhaps we will run into some pretty cool cats out there. I just hope that we survive long enough to get the chance to explore a little. Link to comment Share on other sites More sharing options...
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