Hundreds of miles from the U.N. conference on climate change that wrapped this weekend in Belém, Brazil, scientists are conducting a first-of-its-kind experiment that could help future policymakers ...

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The idea that space-time exists is no more ...

Can we journey through time? From H.G. Wells' "The Time Machine to The Time Traveler's Wife" by Audrey Niffenegger and "Outlander" by Diana Gabaldon, time travel has captured our imagination for ...