NASA: Einstein's Cosmic Speed LimitBackIn its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermis measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light. This version of the film is missing a shot. If you want to see the full version in all its glory, go to its listing in our film archive: http://svs.gsfc.nasa.gov/goto?10510 To find out more visit: http://www.nasa.gov/mission_pages/GLAST/news/first_year.html Category: Tech Uploaded: November 2nd, 2009 @ 4:21 pm Author: LabEquipment Length: 05:46 Rating: Views: Tags: laboratory equipment news science gamma-rays gravity einstein space time light Related Video Links:» View Video Comments For NASA: Einstein's Cosmic Speed Limit » View LabEquipment's Other Uploaded Videos Video Thumbnails:Video Embedding Code:* Embed this video on your website, social bookmark, myspace, or blog. |
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