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One of the most incredible physics discoveries of the century has revealed a "cosmic fingerprint" explaining the beginning of universe and gravity's microscopic secrets. For more, check out "The Nature of Reality," NOVA's physics blog: http://www.pbs.org/wgbh/nova/blogs/ph... NOVA Facebook: https://www.facebook.com/NOVAonline NOVA Twitter: https://www.twitter.com/novapbs CREDITS Produced, animated, and edited by Greg Kestin Editorial help from Anna Rothschild and Kate Becker Written and researched by Greg Kestin A special thanks to: Colin Bischoff Andrew Friedman Anna Ijjas Original Footage © WGBH Educational Foundation 2014 MEDIA RIGHTS Music: Frost Waltz by Kevin MacLeod (incompetech.com) CC By 3.0 Images: Bicep2: Courtesy of National Science Foundation Big Bang & Galaxies: Courtesy of NASA