Quote:
We also wonder why we don't see any chemically combined nitrogen species like hydrogen cyanide (HCN), cyanogen (NCCN), and acetonitrile, H3CCN.
Hi Mister,

I think one reason if they have not seen any of the nitrogene gaz componants is because they are almost sequestred at solid state now but dissolved in fluid of the surface. I feel that as they suspect life at an early stage, they are seeking for probable early stage evidences. It's doing the backward reasonning, life could be at a more advanced stage on it. There was such gazes... long time ago.