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

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 ...

New simulations suggest dark matter could explain the mysterious gamma-ray glow at the Milky Way’s center. The findings show that the galaxy’s early mergers may have shaped dark matter in a way that ...

But smaller meteorites, too small to be easily spotted, could be anywhere. Flat roofs have long been a popular hunting ground ...