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The problem of investigating life on moons that could host it
So they send a mission to Enceladus. They find no life. "Ah well, maybe the equipment isn't good enough yet?" 10 years pass, another mission is sent. This time they find bacteria and viruses. Now, was this missed the first time around, or was it evolved contamination from the first ship?
https://www.bbc.com/news/science-environment-44630121 |
#2
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The problem of investigating life on moons that could host it
On Fri, 29 Jun 2018 17:14:01 -0700 (PDT), RichA
wrote: So they send a mission to Enceladus. They find no life. "Ah well, maybe the equipment isn't good enough yet?" 10 years pass, another mission is sent. This time they find bacteria and viruses. Now, was this missed the first time around, or was it evolved contamination from the first ship? https://www.bbc.com/news/science-environment-44630121 All life on Earth evolved from a single common ancestor, and shares a huge amount of common genetic coding. Anything we leave behind will be readily identifiable as originating on Earth. Even if alien life uses the same genetic chemistry as Earth life, there's no chance it's going to code for the same genes (and especially for all the inactive segments). |
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The problem of investigating life on moons that could host it
On Friday, 29 June 2018 20:23:30 UTC-4, Chris L Peterson wrote:
On Fri, 29 Jun 2018 17:14:01 -0700 (PDT), RichA wrote: So they send a mission to Enceladus. They find no life. "Ah well, maybe the equipment isn't good enough yet?" 10 years pass, another mission is sent. This time they find bacteria and viruses. Now, was this missed the first time around, or was it evolved contamination from the first ship? https://www.bbc.com/news/science-environment-44630121 All life on Earth evolved from a single common ancestor, and shares a huge amount of common genetic coding. Anything we leave behind will be readily identifiable as originating on Earth. Even if alien life uses the same genetic chemistry as Earth life, there's no chance it's going to code for the same genes (and especially for all the inactive segments). Unless panspermia is right and it came from the same comet, comet swarm, etc. |
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The problem of investigating life on moons that could host it
On Fri, 29 Jun 2018 18:23:29 -0600, Chris L Peterson
wrote: Even if alien life uses the same genetic chemistry as Earth life, there's no chance it's going to code for the same genes (and especially for all the inactive segments). The chance may be negligibly small, but claiming that the chance is zero is an exaggeration. |
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The problem of investigating life on moons that could host it
Life on this planet and indeed physical processes throughout creation has a geometry to it -
http://www.maths.surrey.ac.uk/hosted...nacci/fib.html Animate and inanimate existence is built around this geometry from the smallest organism on Earth to stellar evolution and perhaps greater structures - http://astrobob.areavoices.com/files...Hubble_FEA.jpg The rubbish of the 'theory of everything' is a distraction from the appreciation in our journey through life we pick up the Eternal in nature and this beauty resonates with the spirited and those who can be inspired/spiritual. |
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The problem of investigating life on moons that could host it
On Sat, 30 Jun 2018 08:21:37 +0200, Paul Schlyter
wrote: On Fri, 29 Jun 2018 18:23:29 -0600, Chris L Peterson wrote: Even if alien life uses the same genetic chemistry as Earth life, there's no chance it's going to code for the same genes (and especially for all the inactive segments). The chance may be negligibly small, but claiming that the chance is zero is an exaggeration. Not much. If the chance is smaller than can be reasonably allowed for in the lifetime of the universe, zero isn't a bad assessment. Like the chance of you appearing on the other side of the Earth because of your quantum wave function. Non-zero chance, but so small that it can be treated as such. |
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The problem of investigating life on moons that could host it
On Fri, 29 Jun 2018 22:27:13 -0700 (PDT), RichA
wrote: On Friday, 29 June 2018 20:23:30 UTC-4, Chris L Peterson wrote: On Fri, 29 Jun 2018 17:14:01 -0700 (PDT), RichA wrote: So they send a mission to Enceladus. They find no life. "Ah well, maybe the equipment isn't good enough yet?" 10 years pass, another mission is sent. This time they find bacteria and viruses. Now, was this missed the first time around, or was it evolved contamination from the first ship? https://www.bbc.com/news/science-environment-44630121 All life on Earth evolved from a single common ancestor, and shares a huge amount of common genetic coding. Anything we leave behind will be readily identifiable as originating on Earth. Even if alien life uses the same genetic chemistry as Earth life, there's no chance it's going to code for the same genes (and especially for all the inactive segments). Unless panspermia is right and it came from the same comet, comet swarm, etc. Sure. But if panspermia is right (which it almost certainly is not, at least in terms of delivering complex life) then it doesn't really matter, since all life would be the same. "Earth life" wouldn't have so much meaning. |
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The problem of investigating life on moons that could host it
RichA wrote in
: On Friday, 29 June 2018 20:23:30 UTC-4, Chris L Peterson wrote: On Fri, 29 Jun 2018 17:14:01 -0700 (PDT), RichA wrote: So they send a mission to Enceladus. They find no life. "Ah well, mayb e the equipment isn't good enough yet?" 10 years pass, another mission is sent. This time they find bacteria and viruses. Now, was this missed the first time around, or was it evolved contamination from the first ship? https://www.bbc.com/news/science-environment-44630121 All life on Earth evolved from a single common ancestor, and shares a huge amount of common genetic coding. Anything we leave behind will be readily identifiable as originating on Earth. Even if alien life uses the same genetic chemistry as Earth life, there's no chance it's going to code for the same genes (and especially for all the inactive segments). Unless panspermia is right and it came from the same comet, comet swarm, etc. If it's contamination from the previous probe, there will be virtually zero genetic shift from the parent. If it's native, even if it is carbon based (highly likely), even if it uses the same gentic bases, even if it uses DNA, it will be at least as different from anything on earth as the variation within earth based bacteria and viruses, and will match none of them. The odds of bacteria evolving separately that are that similar to ours are pretty slim. The odds of them being *identical* are indistinguishable from zero. In short, your question is stupid. (And so are you, but we knew that already.) -- Terry Austin Vacation photos from Iceland: https://plus.google.com/u/0/collection/QaXQkB "Terry Austin: like the polio vaccine, only with more asshole." -- David Bilek Jesus forgives sinners, not criminals. |
#9
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The problem of investigating life on moons that could host it
On Monday, 2 July 2018 18:21:26 UTC+2, Dugh! wrote:
In short, your question is stupid. (And so are you, but we knew that already.) Construct a sentence as an example of irony. |
#10
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The problem of investigating life on moons that could host it
"Chris.B" wrote in news:cff2933a-8d85-4b57-
: On Monday, 2 July 2018 18:21:26 UTC+2, Dugh! wrote: In short, your question is stupid. (And so are you, but we knew that already.) Construct a sentence as an example of irony. I know you are, but what am I? -- Terry Austin Vacation photos from Iceland: https://plus.google.com/u/0/collection/QaXQkB "Terry Austin: like the polio vaccine, only with more asshole." -- David Bilek Jesus forgives sinners, not criminals. |
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