Green

Brian Green was a consultant for the film Frequency, and talks with Brooke about the real possibilities for time travel. He is author of the book about "string theory," which is titled The Elegant Universe.

Comments

 

Please keep your community civil. All comments must follow the NPR.org Community rules and terms of use, and will be moderated prior to posting. NPR reserves the right to use the comments we receive, in whole or in part, and to use the commenter's name and location, in any medium. See also the Terms of Use, Privacy Policy and Community FAQ.