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Cygnus X-1 in X-rays (NASA, Chandra, 11/17/11) | by NASA's Marshall Space Flight Center
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Cygnus X-1 in X-rays (NASA, Chandra, 11/17/11)

Editor's note: this image is part of the composite/artist concept image of Cygnus X-1 that was published on 11/17/2011. This is a beautiful example of the type of pure X-ray images that Chandra produces when observing the universe.

 

Over three decades ago, Stephen Hawking placed -- and eventually lost - a bet against the existence of a black hole in Cygnus X-1. Today, astronomers are confident the Cygnus X-1 system contains a black hole. In fact, a team of scientists has combined data from radio, optical, and X-ray telescopes including Chandra to determine the black hole's spin, mass, and distance more precisely than ever before. With these key pieces of information, the history of the black hole has been reconstructed. This new information gives astronomers strong clues about how the black hole was born, how much it weighed, and how fast it was spinning. This is important because scientists still would like to know much more about the birth of black holes.

 

Credit: NASA/CXC

 

Read entire caption/view more images: chandra.harvard.edu/photo/2011/cygx1/more.html

 

Caption credit: Harvard-Smithsonian Center for Astrophysics

 

Read more about Chandra:

www.nasa.gov/chandra

 

p.s. You can see all of our Chandra photos in the Chandra Group in Flickr at: www.flickr.com/groups/chandranasa/ We'd love to have you as a member!

  

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Taken on November 16, 2011