A huge explosion sliced through our galaxy just 3.5 million years ago, as human ancestors walked the Earth. Scientists think it was nuclear activity in the black hole at the Milky Way's center.
NASA's Hubble telescope found traces of the explosion in a gas stream beyond the Milky Way, "dramatically" changing scientists' view of our galaxy.
[Source: www.businessinsider.com] [ Comments ] [See why this is trending]
[Source: www.businessinsider.com] [ Comments ] [See why this is trending]
Comments