The mysterious "black dwarfs" that will herald the end of the universeAnnalee Newitz10/07/13 3:20pm536EditPromoteDismissUndismissHideGo to permalink This is an absolutely fabulous clip from BBC's Wonders of the Universe special with Brian Cox, which the Beeb has posted to celebrate Space Week. Here, Cox describes how all stars will eventually become black dwarfs . . . before completely disintegrating.