Astronomers observe an active black hole that is dragging the space-time around him
[ad_1] At a little less than 8000 light-years from Earth is a monster: a black hole that actively eats its companion. This pair of stars – one dead, the other dying – called V 404 Cygni. The black hole was formed a long time ago, when an extremely massive star exploded. The core has collapsed, … Read more