Time travel has shifted from pure fantasy to a serious, if highly constrained, topic in modern physics. The equations that ...

Time travel has long lived in the realm of fantasy, but a growing body of research is quietly shifting it into a serious ...

Can we journey through time? Sci-fi author Dete Meserve presents a compelling case for our future in the past. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

From utopian dreams to dystopian warnings, time travel fiction reflects our hopes and fears for humanity’s future. Courtesy the publishers For decades, authors and readers have been asking questions ...

Twenty years ago, over 140,000 Forbes readers participated in an unusual experiment designed to test the limits of long-distance communication: a letter from their own past. The experiment, called an ...