Black holes that turn matter into energy could explain dark energy and answer two other cosmic questions. Now, the challenge ...

Like physics, math has its own set of “fundamental particles”—the prime numbers, which can’t be broken down into smaller ...

University of Oregon astronomer Yvette Cendes made a surprising discovery years after a black hole shredded a star. What is ...

Astronomers have used the LOFAR telescope array to create the largest radio survey of the cosmos, revealing 13.7 million ...

Ripples in the fabric of space-time called gravitational waves may be the key to solving the Hubble tension — one of the biggest nagging problems in physics.

A subtle gravitational-wave “hum” from merging black holes may help settle the cosmic fight over how fast the universe is ...

Gravitational lenses could allow us to find black hole binaries long before we're able to measure their gravitational waves.

The black hole would have to be within 25 light years from Earth, and we haven’t seen one that close yet. That’s not stopping Cosimo Bambi.

A distant quasar is defying two fundamental expectations of black hole physics. The object, known as ID830, is growing at 13 ...

At the heart of nearly every galaxy lurks a cosmic giant: a supermassive black hole. These mysterious objects, millions to billions of times more massive than our Sun, exert such powerful gravity that ...

The secret to the mysterious black holes at the center of galaxies. An image created using x-ray, microwave, and visible imagery reveals the jets and radio-emitting lobes emanating from Centaurus A's ...

Last year, astronomers were fascinated by a runaway asteroid passing through our Solar System from somewhere far beyond. It was moving at around 68 kilometres per second, just over double Earth’s ...