Gamma rays may betray clumps of dark matter

 作者:桑此侥     |      日期:2019-03-14 08:14:05
CLOUDS of dark matter the size of our solar system floating around the Milky Way may betray their presence by emitting gamma rays. Dark matter is thought to make up most of the mass of the universe, but as it does not interact with light, it has never been directly observed. Now computer simulations by Tomoaki Ishiyama of the National Astronomical Observatory in Tokyo, Japan, and colleagues suggest a way to detect it. Their model shows that the Milky Way should be littered with small clumps of dark matter,