Stephen Hawking pushed off of this mortal coil last week, but the world-famous physicist was pondering some of humanity's most puzzling questions right up until the end. Hawking spent decades of his ...

People have been captivated by news about a possible parallel universe — but there’s a big black hole in the theory expounded by a group of NASA scientists, according to a report on CNET. Experts ...

Brianna Smart 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 ...