If you let hydrogen gas alone for 13 billion years it will become giraffes, rose bushes and humans. — Brian Swimme Copy Share Image
We are 13.7 billion light-years from the edge of the observable universe; that's a good estimate with well-defined error bars and with… — Simon Singh Copy Share Image
We are 13.7 billion light-years from the edge of the observable universe, That's a good estimate with well-defined error bars, Scientists say… — Simon Singh Copy Share Image
