Bok
02-21-2013, 08:21 PM
New evidence links origin of these very energetic particles to massive explosions of distant stars
More... (http://www.sciencenews.org/view/generic/id/348508/title/FOR_KIDS_Where_cosmic_rays_are_born)
More... (http://www.sciencenews.org/view/generic/id/348508/title/FOR_KIDS_Where_cosmic_rays_are_born)