Alan Guth - How Far Does the Cosmos Go? HD

Look up at the night sky. Some of those twinkles are not stars but galaxies, each with tens or hundreds of billions of stars. Even dark parts of the sky, empty to our eyes, are bright to the Hubble Telescope, teeming with innumerable galaxies. Now with multiple universes of various kinds, how far can the cosmos go? Click here to watch more interviews with Alan Guth http://bit.ly/1Fn0oN1 Click here to watch more interview on how far the cosmos go http://bit.ly/2efs7fZ Click here to buy episodes or complete seasons of Closer To Truth http://bit.ly/1LUPlQS For all of our video interviews please visit us at www.closertotruth.com