Is time something that flows — or just an illusion? Exploring space-time as either a fixed “block universe” or a dynamic ...

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The id ...

The comet, named 3I/ATLAS, is only the third confirmed interstellar object ever seen in our solar system. That means it came ...

A Hiroshima University team has designed a feasible way to detect the Unruh effect, where acceleration turns quantum vacuum ...

A radical new theory regarding the origin of the universe suggests that gravitational waves, tiny ripples in spacetime first ...

Most cosmologists believe that these stars were the first large, free-floating structures to illuminate our universe, and ...

Pfalzner's models show that interstellar objects — bodies ejected from other star systems — could be captured by these planet ...

Mathematical quirks of our universe have led some cosmologists to wonder whether the cosmos was actually born in a black hole ...

Ten years after scientists first detected gravitational waves emerging from two colliding black holes, the LIGO-Virgo-KAGRA ...

With news of The Super Mario Galaxy Movie coming next year, will the film confirm the theory that Peach and Rosalina are ...

Scientists have captured the clearest signal yet of a black hole collision, confirming Stephen Hawking's theory.