|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
life supporting atmospheres
Nasa seriously needs to consider how can they detect a moon orbiting a planet if they wish to find signs of life. without a large enough moon in a stable orbit the planet will never support life. |
#2
|
|||
|
|||
life supporting atmospheres
On Sunday, August 4, 2013 11:10:11 AM UTC-4, wrote:
Nasa seriously needs to consider how can they detect a moon orbiting a planet if they wish to find signs of life. without a large enough moon in a stable orbit the planet will never support life. |
#3
|
|||
|
|||
life supporting atmospheres
On Sunday, August 4, 2013 8:10:11 AM UTC-7, wrote:
Nasa seriously needs to consider how can they detect a moon orbiting a planet if they wish to find signs of life. without a large enough moon in a stable orbit the planet will never support life. Very few exoplanets will have any moon even half as massive as ours in relationship to the mass of its planet. Supposedly, Mars once had a sufficiently massive moon. |
#4
|
|||
|
|||
life supporting atmospheres
On Sunday, August 4, 2013 11:10:11 AM UTC-4, wrote:
Nasa seriously needs to consider how can they detect a moon orbiting a planet if they wish to find signs of life. without a large enough moon in a stable orbit the planet will never support life. Odd that there would HAVE to be a moon the size of our own, and not a black hole the size of a gumball - as if it would not have been possible for eons of generations of creatures (or (now alien?) races) who have lived here before, to have "manufactured" a BH, in order to create the tidal effect. Perhaps humans were the result of extraterrestrials having made a deal with the original inhabitants, so that we could be kept at bay on the earth as subjects, in order to prove ourselves capable first, until receiving permission to exit the planet. |
#5
|
|||
|
|||
life supporting atmospheres
On Monday, August 5, 2013 12:00:02 PM UTC-7, wrote:
On Sunday, August 4, 2013 11:10:11 AM UTC-4, wrote: Nasa seriously needs to consider how can they detect a moon orbiting a planet if they wish to find signs of life. without a large enough moon in a stable orbit the planet will never support life. Odd that there would HAVE to be a moon the size of our own, and not a black hole the size of a gumball - as if it would not have been possible for eons of generations of creatures (or (now alien?) races) who have lived here before, to have "manufactured" a BH, in order to create the tidal effect. Perhaps humans were the result of extraterrestrials having made a deal with the original inhabitants, so that we could be kept at bay on the earth as subjects, in order to prove ourselves capable first, until receiving permission to exit the planet. Prison planet Earth has a very strong possibility, as a biodiversity experiment of ETs terraforming that went so terribly wrong on so many levels. |
#6
|
|||
|
|||
life supporting atmospheres
On Monday, August 5, 2013 6:43:27 PM UTC-7, wrote:
On Monday, August 5, 2013 5:16:52 PM UTC-7, Brad Guth wrote: The only reason would be that the earth seems to be cooling of, over a similar time scale: http://wattsupwiththat.com/2008/09/2...cooling-trend/ which can only mean that all of the inner planets have been doing the same thing. The output of our sun is not reducing, and the inner core of Earth will likely remain sufficiently hot long after our sun is depleted and having turned into a little white dwarf of perhaps only 4e29 kg (a 5th of its current mass). Are you sure about that? On page 24 of the following document, look how the earth temperature has dropped 68 degrees Fahrenheit over the past (cough) 60 million years, and ask yourself, what will it be like in another 60 million years from now?: http://plutoportal.net/~bullock/Homedocs/PhDThesis.pdf Venus may just be the place for anyone capable of speeding time up, or slowing themselves down, while the rest of the world speeds towards its own self-destruction. The promising thing about Venus is that it may represent what the earth looked like 2 billion years ago, so perhaps in another 2 billion years, Venus will be a new Eden while the earth will be a dead cinder. Looking for another terrestrial Eden with its climate that's just right, is cutting the odds of that happening by another million to one. Are you sure about passing up a million perfectly viable planets, just so that you and other naked Goldilocks can frolic in the nude, is such a good idea? You do realize the the surface of Earth is less than 5% naked Goldilocks worthy as is. Most of us humans need to apply technology in order to survive.. So what if another planet or moon is too hot or too cold, when good technology can resolve most if not all of those issues. |
#7
|
|||
|
|||
life supporting atmospheres
On Mon, 5 Aug 2013 09:43:45 -0700, "Hägar" wrote:
"Brad Guth" wrote in message ... On Monday, August 5, 2013 8:07:56 AM UTC-7, Hägar wrote: "Brad Guth" wrote in message Life can exist/coexist on moonless planets, especially if the core energy hasn't been depleted. With applied technology, even life on Venus is possible. There was life on Earth 4.3 B years ago in the form of Karyotes and Eukaryotes. There was no oxygen. There was no liquid water. There was nothing but chaos, yet there was life, which tells me that life in the Universe is the rule, rather than the exception. Now, for intelligent life to evolve, a large Moon may well be required, but we don't really know, do we, since we, humans, haven't really been anywhere beyond the range of naked-eye visibility. Our instruments are not yet anywhere near the resolution required to detect anything in other Solar Systems ... we can only "see" the largest, Jupiter sized planets, whose images add up to three or 4 pixels ... great for detail work. other than atmosphere and water the most important thing on a planet would be the magnetic field. A large moon orbiting a planet has a very large impact on the sustainability of that magnetic field. a planet the size of earth or even mars will have a magnetic field for awhile even without a moon. without that magnetic field then the atmosphere will eventually burn off not too mention the high levels of radation that the planet will be subjected to. So in order to have a planet sustain life on a planet The large moon would be totally necessary. |
#8
|
|||
|
|||
life supporting atmospheres
|
#9
|
|||
|
|||
life supporting atmospheres
On Mon, 5 Aug 2013 14:01:14 -0700 (PDT), Brad Guth
wrote: On Monday, August 5, 2013 12:00:02 PM UTC-7, wrote: On Sunday, August 4, 2013 11:10:11 AM UTC-4, wrote: As a friendly footnote/advisement: Just because Venus is not suitable for our naked Goldilocks to frolic about, is not a valid reason to believe that no other forms of life have evolved and/or having adapted to that hellish environment. Applied technology greatly expands the Goldilocks scope of survivable environments (including right here on Earth), as is the relatively safe bet for those planning on being essentially stranded on Mars. Venus is adaptable, although of those foolishly planning on a Venusian nudest colony are going to be very discouraged at what reality has to offer. if venus had a moon the size of ours it is very possible that it would have developed life. the necessary raw materials were there that is if it has or at any time had a large amount of water there |
#10
|
|||
|
|||
life supporting atmospheres
On Tuesday, August 6, 2013 10:16:57 AM UTC-7, wrote:
On Mon, 5 Aug 2013 14:01:14 -0700 (PDT), Brad Guth wrote: On Monday, August 5, 2013 12:00:02 PM UTC-7, wrote: On Sunday, August 4, 2013 11:10:11 AM UTC-4, wrote: As a friendly footnote/advisement: Just because Venus is not suitable for our naked Goldilocks to frolic about, is not a valid reason to believe that no other forms of life have evolved and/or having adapted to that hellish environment. Applied technology greatly expands the Goldilocks scope of survivable environments (including right here on Earth), as is the relatively safe bet for those planning on being essentially stranded on Mars. Venus is adaptable, although of those foolishly planning on a Venusian nudest colony are going to be very discouraged at what reality has to offer. if venus had a moon the size of ours it is very possible that it would have developed life. the necessary raw materials were there that is if it has or at any time had a large amount of water there Advanced intelligence wouldn't need very much water (a few ppm would likely be more than sufficient), and whatever atmospheric heating from the mostly geothermal considerations would also be easily managed. |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Life in the atmospheres of L-class stars. | Strange Creature | Astronomy Misc | 31 | May 9th 09 04:01 AM |
Shortlist of Stars supporting Life / BBC | Harry Crayon | Amateur Astronomy | 0 | February 19th 06 04:02 PM |
Life in the atmospheres of L-class stars. | Orbitan | Astronomy Misc | 8 | March 29th 05 02:57 AM |
UFOS HAVE ATMOSPHERES | [email protected] | Misc | 11 | March 15th 04 01:16 PM |
exotic stellar atmospheres | Allan Adler | Astronomy Misc | 1 | December 9th 03 04:48 PM |