Organic chemistry at very low temperatures - Relevance to astrobiology

N-SITU PROBING OF RADIATION-INDUCED PROCESSING OF ORGANICS IN ASTROPHYSICAL ICE ANALOGS—NOVEL LASER DESORPTION LASER IONIZATION TIME-OF-FLIGHT MASS SPECTROSCOPIC STUDIES
http://iopscience.iop.org/2041-8205/756/1/L24

Accompanying press release:
Researchers Brew Up Organics on Ice
http://www.jpl.nasa.gov/news/news.php?release=2012-293

Quote :

In a new study published in the Astrophysical Journal Letters, the research team provides the first direct look at the organic chemistry that takes place on icy particles in the frigid reaches of our solar system, and in the even chillier places between stars. Scientists think that the basic ingredients of life, including water and organics, began their journey to Earth on these lonesome ice particles. The ice and organics would have found their way into comets and asteroids, which then fell to Earth, delivering "prebiotic" ingredients that could have jump-started life.

I wish I understood organic chemistry well enough to better understand what is being talked about here.

so we owe our existence to something that makes pretty colors in the sky every so often, and crashes down to earth (tungsta event for instance)!!!!