Over three decades ago, Stephen Hawking placed, and eventually lost, a bet against the existence of a black hole in Cygnus X-1. yt_HBRL-bec1Pg ...
CC0 Usage Conditions ApplyClick for more information. Astronomers are confident the Cygnus X-1 system contains a black hole, and with these latest studies they have remarkably precise values of its ...
Using ESA's INTEGRAL spacecraft, astronomers have detected exceptionally bright X-ray flares from the Cygnus X-1 X-ray binary system. This is the first time that such strong flaring activity has been ...
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