If that seems like a weird question to you, consider the fact that it's the one most pressing for physicists and for their most successful theory about the physical world. That theory is called ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Time feels like the most basic feature of reality.

The field of physics may be turned on its head soon, said renowned physicist Nima Arkani-Hamed during a live lecture from the Perimeter Institute for Theoretical Physics in Waterloo, Canada. For one, ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Time feels like the most ...

If that seems like a weird question to you, consider the fact that it's the one most pressing for physicists and for their most successful theory about the physical world. That theory is called ...