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A comment on Rosetta finds comet's water vapour to be significantly different from Earth's. Parent comment

Re:Rosetta finds comet's water vapour to be significantly di... by AnimalMuppet on Wednesday December 10, 2014 @06:01PM (#8732254)
Panspermia has nothing to with where the water came from.
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Re:Rosetta finds comet's water vapour to be significantly di... by Balgair on Wednesday December 10, 2014 @06:53PM (#8732437)
http://www.nature.com/news/dna-has-a-521-year-half-life-1.11...

DNA has a 'half-life' of ~500 years. Panspermania may still be a viable theory, but it is very restricted in terms of stellar distance/time in transit.

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Re:Rosetta finds comet's water vapour to be significantly di... by CamperBob2 on Wednesday December 10, 2014 @07:38PM (#8732587)
That's at (or near) STP, though.
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Re:Rosetta finds comet's water vapour to be significantly di... by Balgair on Thursday December 11, 2014 @03:53PM (#8737011)
Very true, but getting this data in a vacuum and in a stellar radiation environment is tough. Who knows what the preserving effects of space are like to DNA. However, one data point is better than none.
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Re:Rosetta finds comet's water vapour to be significantly di... by gpvos on Thursday December 11, 2014 @07:58AM (#8734465)
What's STP?
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Re:Rosetta finds comet's water vapour to be significantly di... by arethuza on Thursday December 11, 2014 @09:14AM (#8734762)
Probably "Standard Temperature and Pressure":

http://en.wikipedia.org/wiki/Standard_conditions_for_tempera...

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