Monster of the Milky Way
Does a supermassive black hole lurk at the center of our galaxy?
Expired: 12/15/15Video has closed captioning.
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Funding for NOVA is provided by David H. Koch, the Corporation for Public Broadcasting and PBS viewers. Original funding provided by Google, the National Science Foundation, HHMI, NASA's Gamma Ray Large Area Space Telescope, the Corporation for Public Broadcasting, and PBS Stations.