by Thedaytoday follow (0)
Black hole collision may have irradiated Earth in eighth century A powerful gamma ray burst caused by a collision of two black holes or neutron stars may have irradiated the Earth in the eighth century, researchers claim.
http://www.telegraph.co.uk/science/space/9816219/Black-hole-collision-may-have-irradiated-Earth-in-eighth-century.html
Black hole collision may have irradiated Earth in eighth century
A powerful gamma ray burst caused by a collision of two black holes or neutron stars may have irradiated the Earth in the eighth century, researchers claim.
http://www.telegraph.co.uk/science/space/9816219/Black-hole-collision-may-have-irradiated-Earth-in-eighth-century.html