Add Yahoo as a preferred source to see more of our stories on Google. A blue nebula looks like an eye in this NASA image The expansion of the universe could be a mirage, a potentially controversial ...

Theoretical physicists Joao Magueijo and Lee Smolin have proposed that time is not merely a backdrop against which the universe unfolds but a quantum variable that directly shapes cosmic expansion.

Ryan Keeley does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...