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  • Black holes and starry skies

    Black holes and starry skies

    By Mason Jones
    Published: May 12, 2011

    How do you measure a black hole? In this video Astronomy Professor Karl Gebhardt weighs in on the cosmic matter.

    Watch this video

    • Quote 2
      Peter said on Oct. 3, 2011 at 9:20 p.m.
      Hi Karl I still don't understand how you find these black holes even if you are not sure they are black holes. I am intrigued by by their concept but they have always confused me. You have made the comment that you don't know if black holes are black holes. This is why I am confused. Can you recommend somewhere I can go to [web site] where I can learn more about this. I would appreciate it if you could suggest a good resource. Thanks.
  • Telescope Features

    McDonald Observatory
    McDonald Observatory
    Discover new methods to teach astronomy.
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