Does the universe repeat once every trillion years?
JUL 05, 2007
DOI: 10.1063/PT.5.021255
SEED magazine : How did the universe begin? Did it have a beginning at all? Ever since the discovery of the cosmic background radiation in 1965, the overwhelmingly predominant view has been that our universe began about 14 billion years ago in a cosmic fireball known as the “big bang” and that it has been expanding, cooling, and evolving ever since. Paul Steinhardt describes his and Neil Turok’s new counter theory that the big bang has occurred myriad times in our universe’s past, repeating at regular intervals during which galaxies, stars, planets, and life form anew. The result is a “cyclic universe” in which cycles extend far into the past and into the futureâmdash;and perhaps forever.
© 2007 American Institute of Physics
