The final episode of fifth season of the Netflix series Stranger Things is out this week, and the concept of a wormhole ...

If there's any franchise that's perfectly set up to explore time travel, it's "Star Trek." These episodes are top-rated by ...

In 2026, there will be journeys to the moon and Mars, new visions of the cosmos and a solar eclipse that might be worth ...

Time feels like the most familiar thing in the world, yet it hides one of physics’ hardest questions: why do we only remember ...

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

Climate scientist Katharine Hayhoe reflects on flying, fossil fuels, and the tension between personal responsibility and ...

The popular theory that Stranger Things will ultimately include time travel is not new; it certainly didn’t originate with Stranger Things 5. Show producer and director Shawn Levy said the show would ...

If “Katabasis” author R.F. Kuang could time travel, she’d want to be 18 years old at a Beatles concert. Living in the '60s is an enticing idea for Kuang, who's known for fantasy books “Babel” and “The ...

Predestination doesn’t waste time trying to explain the time travel technology, and it doesn’t need to, because it’s so coherent and straightforward, you naturally see that it makes sense right away.

We’re celebrating 180 years of Scientific American. Explore our legacy of discovery and look ahead to the future. Travel involves two main expenditures of energy: fighting gravity and propelling ...

Scientists have taken one more step down the very long road to time travel. A new paper combines the Alcubierre “warp” drive with the idea of “controlled closed timelike curves.” Though far out, ...

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 ...