time travel

Latest about time travel

Best time travel movies: Christopher Lloyd in Back to the Future

Best time travel movies of all time

By Preston Willke last updated

Journey through cinema and science fiction history as we run down the best time travel movies of all time, from simple trips to other eras to time loops.

Space Movies & Shows
An artist's illustration of a black hole. The center of black holes are examples of singularities.

Could humans use black holes to time travel?

By Sam Baron published

Black holes form natural time machines that allow travel to both the past and the future. But don't expect to be visiting dinosaurs any time soon.

Black Holes
grandfather paradox graphic illustration showing time warping and swirling towards the center of the image

What is the grandfather paradox?

By Robert Lea last updated

Reference The grandfather paradox is an example of a problem arising from the effect of time travel on causality. Here's how it works (or doesn't).

Reference
The mixed time directions of the photon could help physicists probe inside black holes.

'Quantum time flip' makes light move simultaneously forward and backward in time

By Ben Turner published

The time-flipped photon can't be used to restage "Back to the Future," but it could help us figure out some of the universe's most mysterious phenomena.

Particle Physics
Outer Wilds

Best time travel games

By Henry St Leger published

Here's our list of the best time travel games with more timeloops and grandfather paradoxes than you can shake a stick at.

Space Games
David Tennant as "Doctor Who."

David Tennant surprises 'Doctor Who' fans for 2023's big 60th anniversary party

By Jeff Spry last updated

"Doctor Who" teases David Tennant's return for 2023's special 60th anniversary episodes.

Space Movies & Shows
Starhenge #1

Exclusive: Superstar comic artist Liam Sharp conjures an Arthurian sci-fi epic with 'Starhenge'

By Jeff Spry last updated

Writer/artist Liam Sharp delivers his fantastic new sci-fi series for Image Comics, "Starhenge."

Space Books
Humankind has been fascinated by time-travel for centuries.

Can we time travel? A theoretical physicist provides some answers

By Peter Watson published

Can we time travel like they do in the movies? The laws of physics might forbid it.

Astronomy
Buzz Lightyear and his new crew in Disney's new "Lightyear" film.

In the new Disney Pixar movie Lightyear, time gets bendy. Is time travel real, or just science fiction?

By Sam Baron published

Time becomes Buzz Lightyear's biggest enemy in the new Disney Pixar movie, Lightyear. Here we explore whether time travel is real or just the stuff of science fiction.

Space Movies & Shows
If time travel were possible, it would mean the existence of parallel timelines.

Time travel could be possible, but only with parallel timelines

By Barak Shoshany published

Is time travel really possible in our universe, or is it just science fiction?

Astronomy
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