Final Nail In Stephen Hawking's Cygnus X-1 Bet?
Monday, November 21, 2011 - 10:00
in Astronomy & Space
Astronomers have more precisely determined the spin, mass and distance of what they are confidently calling a stellar-mass black hole in the Cygnus X-1 system. Hawking bet against its existence three decades ago. Take a guided tour of the system.