A radical new theory proposed by theoretical physicists suggests that the universe may be infinitely old and infinitely large. The new study suggests that time did not begin along with the Big Bang 14 billion years ago, but that "big bangs" happen repeatedly in a never-ending cycle of universal expansion and contraction.
Under this new theory, the universe must be at least a trillion years old and have experienced innumerable "big bangs" and "big crunches." (By the way, this theory has been lifted directly from the Bhagavad Gita.)
"I think it is much more likely to be far older than a trillion years though," said Professor Neil Turok, a theoretical physicist at the University of Cambridge. "There doesn't have to be a beginning of time. According to our theory, the universe may be infinitely old and infinitely large." Fortunately, the next big crunch won't gobble us all up for at least 10 billion more years. (The Guardian)