Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

Time Travel: Not Just for Sci-Fi Fans Before you hop in a DeLorean or fire up a wormhole, let’s get something straight: Time travel already exists — in small, surprising ways. Thanks to Albert ...

The science: Is time travel possible? Up until recently, physicists believed that time travel to the past was impossible because it required unusual matter or extreme warping of spacetime.

Researchers have discovered that it’s possible to speed up, slow down, or reverse the flow of time in a quantum system. This isn’t exactly time travel, but is instead implementing or reverting to ...

A scientist has mathematically proven the physical feasibility of paradox-free time travel. But once you go back, you might not like what you find.

Physicist Michio Kaku says new CERN experiments suggest time travel could be possible. Also, Wisconsin Gov. Scott Walker talks with WSJ editorial board members about how his state is outcompeting ...

ABC: Is time travel possible? Dr. Tyson: We have ways of moving into the future. That is to have time tick more slowly for you than others, who you return to later on.