From Taylor Swift's engagement to Robert Irwin's big win, here's the best, worst and weirdest of the year ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from the early cosmos.

Brian Cox explains the most extreme, dangerous region in the cosmos, where gravity, radiation, and physics push the limits of ...

Cosmic dawn galaxies seen by JWST reveal hidden clues about dark matter and keep rival theories about its true nature alive.

From a particle smasher encircling the moon to an “impossible” laser, five scientists reveal the experiments they would run ...

The Hulk's latest rampage across the Marvel Universe just gave a classic villain the chance to claim some of the MCU's most ...

If you look across space with a telescope, you’ll see countless galaxies, most of which host large central black holes, billions of stars and their attendant planets. The universe teems with huge, ...

Most scientists agree the prolonged flash likely occurred when a black hole ate a star, but two other ideas can't be ruled ...

Astronomers have sighted the oldest known stellar explosion, dating back to when the universe was less than a billion years ...

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

A sudden X-ray flare from a supermassive black hole in galaxy NGC 3783 triggered ultra-fast winds racing outward at a fifth the speed of light—an event never witnessed before. Using XMM-Newton and ...

Researchers have created a fully relativistic model showing that gravitational waves might carry hidden clues about dark ...