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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 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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