I have a form of time–space synaesthesia, so the new year arrives for me in a very physical way. I feel myself move around the year, almost like I’m travelling along a structure. December sits low and ...

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 ...

A new theory suggests that the unification between quantum physics and general relativity has eluded scientists for 100 years because huge "fluctuations" in space and time mean that gravity won't play ...