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Venus, Mars Share Rare Molecule
cndwrld
post Oct 11 2007, 07:33 AM
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Planetary scientists have detected a rare molecule in the atmospheres of both Mars and Venus. The molecule, an exotic form of carbon dioxide, could affect the way the greenhouse mechanism works on Venus.

More information is available at the ESA Venus Express web site at:

http://www.esa.int/SPECIALS/Venus_Express/SEMF8BV7D7F_0.html


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stevesliva
post Oct 11 2007, 03:56 PM
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Sounds a lot like the discovery of Helium.
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ngunn
post Oct 11 2007, 04:08 PM
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QUOTE (stevesliva @ Oct 11 2007, 04:56 PM) *
Sounds a lot like the discovery of Helium.


Sort of, except that the lopsided CO2 with masses 16-12-18 was already known on Earth, but (I'm guessing because I've only read the press release posted here) the isotopologue absorption at 0.3 microns specifically caused by its asymmetry hadn't been observed in Earth's atmosphere because of its very low abundance.
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- cndwrld   Venus, Mars Share Rare Molecule   Oct 11 2007, 07:33 AM
- - ngunn   Thanks for posting that. The word 'isotopologu...   Oct 11 2007, 03:46 PM
|- - tuvas   QUOTE (ngunn @ Oct 11 2007, 08:46 AM) Tha...   Oct 12 2007, 01:42 PM
- - stevesliva   Sounds a lot like the discovery of Helium.   Oct 11 2007, 03:56 PM
|- - ngunn   QUOTE (stevesliva @ Oct 11 2007, 04:56 PM...   Oct 11 2007, 04:08 PM
- - nprev   Hmm. According to this site, O-18 only makes up 0....   Oct 11 2007, 04:49 PM
|- - ngunn   QUOTE (nprev @ Oct 11 2007, 05:49 PM) Hmm...   Oct 11 2007, 08:01 PM
- - dvandorn   Unfortunately, Nick, Venus' mass is very nearl...   Oct 11 2007, 05:09 PM
- - nprev   I was thinking of accretional effects too, Doug, b...   Oct 11 2007, 06:22 PM
- - nprev   Okay, I'm with you now...funny how assumptions...   Oct 11 2007, 09:12 PM
|- - ngunn   QUOTE (nprev @ Oct 11 2007, 10:12 PM) So ...   Oct 11 2007, 09:22 PM
- - ngunn   Nice clarification, thanks tuvas.   Oct 12 2007, 02:10 PM

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