The latest time crystal innovation may expand the known boundaries of quantum mechanics. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Experts often talk about the “burden” of a disease or illness. The word acts as a tidy container for all the unpleasantness people with that condition may experience—from their symptoms, to the cost ...

Time travel is deterministic and locally free, a paper says—resolving an age-old paradox. This follows research observing that the present is not changed by a time-traveling qubit. It’s still not very ...