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 Posted: Fri Jan 16, 2009 9:15 pm
Do you believe there once was/still is life on other planets within our solar system?
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Posted: Sun Mar 01, 2009 11:43 pm
I believe that there can or could be life on one of Saturn's moons. A satellite named Cassini was launched to take a visit there in 1997 and it's foundlings were astonishing. They found steam vents which could trigger life. More information on this subject.
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Posted: Thu Mar 05, 2009 12:26 pm
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Posted: Mon May 04, 2009 12:51 pm
Evidence provided by Europa's gravitational influence on the Galileo Spacecraft shows that a liquid water ocean possibility 200km deep below the 100km thick crust. Hydrothermal vents are likely present in Europa's ocean and caused by tidal heating, though they haven't been observed directly but its only the second moon out (Io being the first) so I think its highly probable that life exists in Europa's mineral rich ocean. read this http://solarsystem.nasa.gov/multimedia/display.cfm?IM_ID=5543
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M u s t a n g Vice Captain
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Posted: Sat May 23, 2009 8:40 am
Probably not, but there might be some life on Jupiter's moon Europa, or Saturn's moon Titan. Some scientists even suggest the dwarf planet Ceres. All this is possible but highly improbable.
But there might already be life all over the Solar System, especially on Mars accidentally seeded by the probes we sent there.
Apparently some bacteria accidentally brought to the Moon on one of the Apollo missions managed to survive there for a few decades, so with an atmosphere like on Mars or Titan (Saturn's moon), they might have found a new home! Then we might have spread life already without knowing it.
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Posted: Mon May 25, 2009 9:27 am
Europa is considered to be one of the best spots to look life in our solar system. Mars has a habbitable zone below its srface and we have evidence of liquid water existing below the srface it some times creates gulies on the sides of crator walls, these fetures have been observed and identifyed as resent I'm sure we'll find micorscopic life on marz in the habitable zone below the radiation bathed surface life that existed in the past may still exist on Mars, I beleive we will find bacteria feeding on the minrals in the Martian soil, a martian rock found in Antarctica has what looks to be a fossilized bacteria. that site has some nice pictures link
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M u s t a n g Vice Captain
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Posted: Tue May 26, 2009 11:59 am
Yeah, but a planet having a habitable zone does not mean than life would automatically have evolved there...
But like I mentioned in my previous post life from Earth (bacteria in this case) would survive and eventually evolve (if it survives long enough) in those habitable zone if it was brought there (accidentally or on purpose).
This could already have happened all over the Solar System where we sent probes.
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Posted: Sun Jun 07, 2009 1:35 pm
cosmobc Yeah, but a planet having a habitable zone does not mean than life would automatically have evolved there... But like I mentioned in my previous post life from Earth (bacteria in this case) would survive and eventually evolve (if it survives long enough) in those habitable zone if it was brought there (accidentally or on purpose). This could already have happened all over the Solar System where we sent probes. A habitable zone does not prove life is there but it states that life could be there and on earth if life can exist it will exist. earth was at one time totally uninhabitable as it began to change life did evolve and adapt to our environments. And if a space craft can bring bacteria to the moon, then why cant a asteroid seed life. If the elements needed are there then what would stop life from starting and evolving. We learn more and more that were not so different in the universe, we have learned that our planet orbits a star, that their are many galaxies besides our own and we have even learned that other planets with systems like what we find on earth exist. Why can't life start not just evolve, but begin on its own with on another planet or moon. We know that Mars used to have water and a better atmosphere, it used to have volcanic activity. If life could have started back then it might still exist. It could have retreated to the habitable zone and if sustainability is possible then maybe life is still there today. I'll take the chance of being wrong, and I'll say that not only do I think life exists else where, I believe that it could have started and evolved on isolated worlds like Europa, Even the clouds on Venus aren't out of the question. I think we will find the evidence to prove life can and does exist with out any help from probes carrying bacteria from earth.
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M u s t a n g Vice Captain
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Posted: Sun Jun 07, 2009 1:49 pm
M u s t a n g cosmobc Yeah, but a planet having a habitable zone does not mean than life would automatically have evolved there... But like I mentioned in my previous post life from Earth (bacteria in this case) would survive and eventually evolve (if it survives long enough) in those habitable zone if it was brought there (accidentally or on purpose). This could already have happened all over the Solar System where we sent probes. A habitable zone does not prove life is there but it states that life could be there and on earth if life can exist it will exist. earth was at one time totally uninhabitable as it began to change life did evolve and adapt to our environments. And if a space craft can bring bacteria to the moon, then why cant a asteroid seed life. If the elements needed are there then what would stop life from starting and evolving. We learn more and more that were not so different in the universe, we have learned that our planet orbits a star, that their are many galaxies besides our own and we have even learned that other planets with systems like what we find on earth exist. Why can't life start not just evolve, but begin on its own with on another planet or moon. We know that Mars used to have water and a better atmosphere, it used to have volcanic activity. If life could have started back then it might still exist. It could have retreated to the habitable zone and if sustainability is possible then maybe life is still there today. I'll take the chance of being wrong, and I'll say that not only do I think life exists else where, I believe that it could have started and evolved on isolated worlds like Europa, Even the clouds on Venus aren't out of the question. I think we will find the evidence to prove life can and does exist with out any help from probes carrying bacteria from earth. All this is possible, but the sad thing is that we won't know for sure until we find some evidence, which is not that easy with NASA's current budget, let alone that if life exists out there, it's would be really hard to find, especially with today's technology. Life on other planets is still an open question: there is no evidence for, or against it. By the way, have you heard about the theory of Panspermia? It's a theory that says that life was seeded on Earth (and possibly on other planets/moons) by comets from outer space. Read more: http://en.wikipedia.org/wiki/Panspermia
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Posted: Mon Jun 08, 2009 2:22 pm
yeah I like Panspermia theory, but I think the earliest life on earth would probably have started deep under ground in mineral rich under ground lakes.
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M u s t a n g Vice Captain
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Posted: Mon Jun 08, 2009 3:56 pm
If the panspermia theory is right, then that would mean that there IS life all over the solar system! biggrin
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Posted: Thu Jun 11, 2009 11:38 am
cosmobc If the panspermia theory is right, then that would mean that there IS life all over the solar system! biggrin It's romantic to think that life took a long voyage to get to earth and if that's the case than all kinds of life could have come from all kinds of different places life that evolved for the most part, or totally isolated comes to earth and starts to mingle with all other sorts of life from different places.
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M u s t a n g Vice Captain
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Posted: Thu Jun 11, 2009 12:45 pm
M u s t a n g cosmobc If the panspermia theory is right, then that would mean that there IS life all over the solar system! biggrin It's romantic to think that life took a long voyage to get to earth and if that's the case than all kinds of life could have come from all kinds of different places life that evolved for the most part, or totally isolated comes to earth and starts to mingle with all other sorts of life from different places. Hum... that's an interesting thought... assuming that those life forms would be similar enough to mingle with each other, but yeah it's possible, but there's no evidence for now...
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Posted: Thu Jun 11, 2009 4:59 pm
cosmobc M u s t a n g cosmobc If the panspermia theory is right, then that would mean that there IS life all over the solar system! biggrin It's romantic to think that life took a long voyage to get to earth and if that's the case than all kinds of life could have come from all kinds of different places life that evolved for the most part, or totally isolated comes to earth and starts to mingle with all other sorts of life from different places. Hum... that's an interesting thought... assuming that those life forms would be similar enough to mingle with each other, but yeah it's possible, but there's no evidence for now... I don't actually mean mingle like how people do. I mean them co-existing in the same area after coming from different parts of the solar system
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M u s t a n g Vice Captain
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