Researchers learn more about the possible role of gamma ray bursts on life extinction in the universe

Researchers learn more about the possible role of gamma ray bursts on life extinction in the universe PhysOrg. Chuck L: “Yet another potential mode of life-extinguishing catastrophe to obsess about: asteroid collisions, super volcanoes, and now gamma ray bursts. Or not.”http://phys.org/news/2014-12-role-gamma-ray-life-extinction.html