From phone boxes and flux capacitors to black holes and hot tubs, sci-fi has created plenty of ways to explore the fourth dimension. When you purchase through links on our site, we may earn an ...

Celery and Uncle Zucchini race. / Jet tests his experimental time machine. Celery competes against her brother, Uncle Zucchini, in an "Earthie-style race with a winner"! / Jet uses his Bortronian ...

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The idea that space-time exists is no more ...

Imagine a clock that doesn’t have electricity, but its hands and gears spin on their own for all eternity. In a new study, physicists at CU Boulder have used liquid crystals, the same materials that ...

China has built a machine so extreme that its designers say it can squeeze centuries of geological change into a few days of lab time, effectively compressing the way matter experiences time and space ...

As fans of The Expanse know, the setting is grounded in science. The Expanse authors Daniel Abraham and Ty Franck have been praised for creating a universe that at least makes an effort to make sense ...

If you had all of space-time to visit, all of the history of the universe at your fingertips… where would you go? A team of ...

If you wave your hand in front of your face, you won’t notice anything particularly interesting. Perhaps a gentle waft of air against your cheek – that’s about it. No epiphany. No major sign that ...