From phone boxes and flux capacitors to black holes and hot tubs, sci-fi has created plenty of ways to explore the fourth ...

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 ...

Ron Mallett, a physicist and professor emeritus at the University of Connecticut, was just 10 years old when he lost his father to a sudden heart attack. This traumatic experience, along with ...

Add Yahoo as a preferred source to see more of our stories on Google. It speaks to our deepest regrets and desires — the chance to reconnect with someone now gone, to undo mistakes, or to relive our ...