Bok
09-29-2012, 02:49 AM
The gassy halo engulfing the Milky Way, a comet in the neighborhood, and extraterrestrial rocks as the source of life on Earth
More... (http://www.sciencenews.org/view/generic/id/345450/title/News_in_Brief_Atom_%2B_Cosmos)
More... (http://www.sciencenews.org/view/generic/id/345450/title/News_in_Brief_Atom_%2B_Cosmos)