Force_Feedback Posted November 14, 2006 Posted November 14, 2006 http://news.bbc.co.uk/2/hi/science/nature/6146292.stm I for once seriousely (more or less, I don't worship UFOs or something :P) think that life as we know it did not begin with some amino acids in some vulcanic pool, I think the first orgamisms came on a meteorite, maybe a comet that impacted the young Earth. Creedence Clearwater Revival:worthy:
GGTharos Posted November 14, 2006 Posted November 14, 2006 Nice find. :) Well, those organisms had to start in ... 'a little puddle or primordial goo' ... (Q quote! Ha!) [sIGPIC][/sIGPIC] Reminder: SAM = Speed Bump :D I used to play flight sims like you, but then I took a slammer to the knee - Yoda
Invicta Posted November 14, 2006 Posted November 14, 2006 Yeah that's what I keep wondering.. If life got here on some comet, then where did the comet come from? Somewhere there had to be a puddle of goo somewhere to 'supply' the comet with life basics....
Capt.LoneRanger Posted November 14, 2006 Posted November 14, 2006 Actually there are many bacterias and cells on earth, that either do not contain a centralized core DNA or don't have that all the time. Humans, for example. While the cell in it's normal state has a DNA, there are some reasons this DNA is far more difficult to detect - that is, when the cell has just multiplied. The DNA is the rebuild from a single RNA strang. Still it's close to impossible earth is the only planet containing life. Just think about the organisms that life near or directly attached to black smokers in depths of 1.5-5km at a water temperature of 80°C+. And we're not even talking about bacteria here!
Pilotasso Posted November 14, 2006 Posted November 14, 2006 Comets contain alot of organic compounds but could never generate life in themselves. Thats because they are originated in the early stages of the solar systems formation. Their temperature is arround the absolute zero, there were neither conditions to get life in them, nor to transport from a planet to planet like some sort of interplanetary bus. A comet would never survive more than one hit with a planet anyway. Life on earth could probbaly originated with the help of nutrients carried by them. The most it could happen would be transported to earth by meteories from another planets catastrophic collision with a stray large solid body. Before you coment such a large body would be a commet, let me remind you, comets are mostly ice and rarely exceed a few kilometers in diameter. A planet containing life implies dense atmosphere that would cause any colliding comet to completely desintegrate and burn up on entry. Any ice reaching the ground would be instantly atomized in the realease of the energy following the impact. The DNA'less mysterious cells found in that rain are most probablt generated by bazic organic molecules and amino-acids that have always been present everywhere on earth including the high atmosphere. If anything, earth is tho one waiting to sead the stars. .
Capt.LoneRanger Posted November 14, 2006 Posted November 14, 2006 Well, if you explain definitions, you should also mention, that comets are not meteorites. Comets are large objects that pass the solar system with a more or less large flare, consisting of dust and vaporized water, that is burned or scraped of the side facing the sun. On the other hand, as you allready described, comets cannot produce life. However, that conclusion is very vague, as most are parts of planets, especially the ones containing large portions of ice. And these planets can very well include life, life which is shock-frosted, if not too close to the impact point. Then again, there are many organisms, that can be deep-frozen and still become alife, when they get warm again. :smartass: And to bring in some more ideas: Remember the stones that were originated from Mars? They were found on the moon and they also contained forms, that probably were bacteria, very familiar to those on earth. Other meteorites are also known to contain fossils.;)
Pilotasso Posted November 14, 2006 Posted November 14, 2006 On the other hand, as you allready described, comets cannot produce life. However, that conclusion is very vague, as most are parts of planets, especially the ones containing large portions of ice. And these planets can very well include life, life which is shock-frosted, if not too close to the impact point. Then again, there are many organisms, that can be deep-frozen and still become alife, when they get warm again. :smartass: Commets remain chemicaly mostly the same for billions of years and they do not get warm enough for long enough to allow life to evolve. Theres a reason why scientists are looking for them tos ee what the primitive solar system was like. On the other hand planets are subjected to many changes, earth was once frozen as well. There were many other ICe ages (comparetively small though), oceans level has changed as much as 150m (450 feet), and average global temperatures varied wildely. Comets dont get these changes. Nor could they survive more than 1 impact. And to bring in some more ideas: Remember the stones that were originated from Mars? They were found on the moon and they also contained forms, that probably were bacteria, very familiar to those on earth. Other meteorites are also known to contain fossils.;) Some studies say that those life forms are too small, They were shown to be small to the scale where only viral life would be possible. As you know you have to find bacteria before this parazitic life forms. In addtiton the "worms" shapes seen on electronic microscope are allegely distortions caused by the thin gold coating samples recieve for observation. The observation of the same samples without the gold coating do not show the worms.So the debate goes on because theres no solid evidence yet. .
Capt.LoneRanger Posted November 14, 2006 Posted November 14, 2006 :) The life I mentioned does not evolve on the comet, but on the origin of the comet. And one of the possible origins for a comet is a planet and that a planet can support life is out of doubt, I believe. Nevertheless comets do very well evolve and get formed by the sun, they cannot generate life however, as the frozen water facing the sun is instantly vaporized and bombarded by particles and radiation. The debate about the "worms" found with the electron-microscope is allready over, to be honest. Despite the fact, that living things to not need a concentrated DNA, as said before, which is the most important reason for a minimum size aspekt for a bacteria, these "worms" were allready proven to be traces of the impact, where the meteorite was born. That happened the same way most comets were born: By collision of a planet with another large object. This meteorite, however was so close to the impact, life in whatever form would have been vaporized. The lines were proven in experiments to be exactly the same deformations that happen to most materials, including minerals and metals, when they are close to an explosion. Still there are several meteorites containing primitive life or fossils.
Pilotasso Posted November 14, 2006 Posted November 14, 2006 :) The life I mentioned does not evolve on the comet, but on the origin of the comet. And one of the possible origins for a comet is a planet and that a planet can support life is out of doubt, I believe. Nevertheless comets do very well evolve and get formed by the sun, they cannot generate life however, as the frozen water facing the sun is instantly vaporized and bombarded by particles and radiation. The debate about the "worms" found with the electron-microscope is allready over, to be honest. Despite the fact, that living things to not need a concentrated DNA, as said before, which is the most important reason for a minimum size aspekt for a bacteria, these "worms" were allready proven to be traces of the impact, where the meteorite was born. That happened the same way most comets were born: By collision of a planet with another large object. This meteorite, however was so close to the impact, life in whatever form would have been vaporized. The lines were proven in experiments to be exactly the same deformations that happen to most materials, including minerals and metals, when they are close to an explosion. Still there are several meteorites containing primitive life or fossils. Comets do not form from planets, they are formed by concetrated and frozen gas in the nebulae that nurses the new solar systems. Any rocky bodies with metalic elements are not called comets but asteroids. :) Do you see the difference between this definition and your misconception? ANy planet that used to be part of those elements in the commet would have to be standing next to a dying star before it blows up and sends its gas mixture to space. Not a very healthy environ to be at. .
Cdr.Instigator Posted November 14, 2006 Posted November 14, 2006 http://news.bbc.co.uk/2/hi/science/nature/6146292.stm I for once seriousely (more or less, I don't worship UFOs or something :P) think that life as we know it did not begin with some amino acids in some vulcanic pool, I think the first orgamisms came on a meteorite, maybe a comet that impacted the young Earth. I'm like you, a recreational smoker and if you are into that kind of thinking then you will enjoy this link... http://www.ufoarea.com/index.html
hitman Posted November 15, 2006 Posted November 15, 2006 Its a proven fact: the klingons were stationed around uranus since mankind was even conceived.
Force_Feedback Posted November 15, 2006 Author Posted November 15, 2006 I'm like you, a recreational smoker and if you are into that kind of thinking then you will enjoy this link... http://www.ufoarea.com/index.html Ooooh, that will be great when I'm blazed, better than watching Ren & Stimpy :P I still can't believe I watched that when I was a kid, lol. I believe nothing, but like some occasional sci-fi series, but to be frank, I think it's another one of those 'hope givers' like God, luck, life after death, all created by man to statisfy the psychological needs. Because when there is nothing to look forward to, there is no point in living. Creedence Clearwater Revival:worthy:
HRZ Posted November 15, 2006 Posted November 15, 2006 Guys, would you believe me if I tell you am an alien?
Gaizokubanou Posted November 15, 2006 Posted November 15, 2006 Guys, would you believe me if I tell you am an alien? Why not? My mother is still an alien and my entire family used to be. We even have a government identification card to prove it! Anyways I think life beyond Earth is very much probable, but probable does not necessarily mean that it has to be.
Pilotasso Posted November 15, 2006 Posted November 15, 2006 Guys, would you believe me if I tell you am an alien? No your not alien. You just didnt exist and had to be invented, thats all. :) .
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