Welcome to Iowa Public Television! If you are seeing this message, you are using a browser that does not support web standards. This site will look much better in a browser that supports web standards, but it is accessible to any browser or Internet device. Read more on our technical tips page.

Iowa Public Television

  • PBS NewsHour

PBS NewsHour | 'Even Light Can't Escape' Discovered Black Holes | PBS

Duration: 05:45
Program: PBS NewsHour #10213
Broadcast Date: Dec. 6, 2011

Astronomers recently discovered two massive black holes over 300 million light years away. Gwen Ifill gets the details about what the discovery means for the universe.



Post Date: December 6, 2011