Newsbot
4th March 2009, 06:10 PM
Spectrum of quasar shows evidence of orbiting binary black hole system.http://feeds.space.com/~r/spaceheadlines/~4/548901255
More... (http://feeds.space.com/~r/spaceheadlines/~3/548901255/090304-binary-black-holes.html)
More... (http://feeds.space.com/~r/spaceheadlines/~3/548901255/090304-binary-black-holes.html)