Wednesday, April 15, 2009

Look to the Skies

PBS special airing this month:
400 Years of the Telescope



Producer's web site.




The largest known black hole in the known universe was discovered in January of 2008. It beats out its nearest competitor, the black hole in the heart of M87, by a factor of six. Located in the heart of a quasar called OJ287, it’s 3.5 billion light years away.


Photo from Dr. Jim Conwell, Eastern Illinois University.



What would it look like to fall into a black hole?

Andrew Hamilton and Gavin Polhemus of the University of Colorado, Boulder, programmed a computer simulation based on Einstein's general theory of relativity, which describes gravity as a distortion of space and time.

Article & video: New Scientist, April 2009.

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