From RA's science post: Radio astronomers use CO emissions at 1.3 and 2.6 mm to identify molecular hydrogen (H2) in these cold molecular clouds. H I regions consist primarily of neutral atomic hydrogen (H) gas with densities of up to 107 atoms per cubic meter at temperatures around 100 K, and are detected from 21-cm emissions generated by the quantum spin flip of individual hydrogen electrons. Sabertooth to RA: True enough, but things really get interesting as the radio astronomers delve into the mass adenoidal transfusions of C17H21NO4.
Well, I'm not into C17H21NO4 transfusion, either... but I needed something scientifical with to reply to RA's post, and I recalled a bio-chem friend at Berkeley who used to leave that molecular graffitti around the dorms, because no on knew what it was.
I know what it is, but NOT from experience!!! (Google is so educational...) hehehehe