A new key to understanding molecular evolution in space
http://spaceref.com/news/viewpr.html?pid=49145
Scientists at Hokkaido University have revealed temperature-dependent energy-state conversion of molecular hydrogen
on ice surfaces, suggesting the need for a reconsideration of molecular evolution theory.
Molecular hydrogen, the most abundant element in space, is created when two hydrogen atoms bond on minute floating
ice particles. It has two energy states: ortho and para, depending on the direction of proton spins. Ortho-hydrogen
converts to para-hydrogen on extremely low temperature ice particles, though its mechanism remained unclear.
![](http://images.spaceref.com/news/2016/120436_web.jpg)