Time Travel

"Is Time Travel Possible?" Hawking explores the world's favorite scientific 'what if?' warping the very fabric of time and space as he goes. From killing your grandfather to riding a black hole, see how time travel may actually come true.

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  • Originally Aired April 25, 2010
  • Runtime 45 minutes
  • Content Rating United States of America TV-PG
  • Network Discovery
  • Created October 9, 2019 by
    Administrator admin
  • Modified October 9, 2019 by
    Administrator admin