Kathrin Altwegg, the principal investigator of the ROSINA science team, on a blog post said that, in general, a X will be a poor source for perfumes - having a strong smell, a X has the odour of "rotten eggs (hydrogen sulphide), horse stable (ammonia), and the pungent, suffocating odour of formaldehyde. This is mixed with the faint, bitter, almond-like aroma of hydrogen cyanide. Add some whiff of alcohol (methanol) to this mixture, paired with the vinegar-like aroma of sulphur dioxide and a hint of the sweet aromatic scent of carbon disulphide, and you arrive at the ‘perfume’ of our X."
X?
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=> Comets - the ROSINA team is the Rosetta Orbiter Sensor for Ion and Neutral Analysis - the studies were based on data aquired by the Rosetta Orbiter from the comet 67P/Churyumov–Gerasimenko.
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