Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of ...

The astrophysicist talks 'Back to the Future' for movie's 30th anniversary. — -- Today marks the 30th anniversary of "Back to the Future" hitting theaters and launching Michael J. Fox into super ...

Back to the Future is a beloved sci-fi franchise, even with several plot holes, thanks to its time-travel gimmick. The movie stars Michael J. Fox as Marty McFly, a teenager who is sent back in time in ...

Time travel isn't exclusively a feature of the sci-fi genre, and history's greatest non-sci-fi time travel film is a classic ...

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 ...

Forbes contributors publish independent expert analyses and insights. Marc Berman is a New York-based reporter who covers media. Back to the Future, starring Michael J. Fox and Christopher Lloyd, ...