It's a plot device beloved by science fiction: our entire universe might be a simulation running on some advanced ...

For the first time, scientists have the calculations and simulations to explain mysterious flashes from the galaxy OJ 287.

Twin black hole collisions detected in 2024 have provided the sharpest-ever test of Einstein’s theory while revealing new details about how black holes form and spin.

New strategies may soon allow scientists to test dark energy theories within our own solar system, linking cosmic-scale physics to local observation. Science advances through a cycle of proposing ...