Paul Sutter

Neutron stars are some of the weirdest cosmic objects, and the greatest mysteries lie deep in their hearts.

While it's much smaller than the largest supermassive black holes detected, it's still a whopper considering how early in the history of the universe it appeared.

The infant universe's population of huge black holes could owe itself to ultralight dark matter, scientists say.

In the early universe, primordial black holes could acquire a "dark charge," giving them an unnaturally long lifetime, new research suggests. This makes them an interesting candidate for dark matter.

Famed physicist Stephen Hawking took gravity to its ultimate limits. In doing so, he made a number of significant advancements in our understanding of black holes, cosmology and quantum gravity.

For over a century, astronomers have marveled at the beauty and complexity of spiral galaxies, which feature arms covered in a multitude of small-scale features known as feathers.

Despite a brief panic, asteroid 2024 YR4 isn't likely to hit us anytime soon, but we can still study the asteroid up close to help us understand these space rocks.

The moon is unlike anything else in the solar system. So how did our planet end up with such a special moon?

To construct a warp drive, we would need negative mass, which doesn't appear to exist in the universe and would violate everything we know about motion, momentum and energy.

Astronomers have discovered that sulfur may be a key to helping us narrow down our search for life on other planets.

Hunting for alien civilizations isn't a matter of just waiting around for them to show up; it's the business of combing through enormous volumes of data to look for peculiar signals.

The skies may be full of invisible "boson stars" that could have a connection to dark matter.

If parallel universes exist, can we access them? Let's explore the possibility.

Dark matter can't be too heavy or it might break our best model of the universe, new research suggests.

For decades, scientists assumed that the expansion of the universe was powered by a new entity, known as the inflaton, but new research suggests that it may have been possible without it.

Ever since the discovery of methane on Mars, scientists have wondered if the Red Planet might harbor life. Now, researchers know where to look: deep under the surface of a broad Martian plain.

Researchers have designed a flexible material that could pave the way for the development of adaptable space structures.

As black holes slowly vanish through Hawking radiation, their information may be preserved in subtle space-time ripples, a new theory suggests.

Scientists theorize there could be subatomic particles we have yet to discover. Here are five of the weirdest, rarest hypothetical particles in the universe.

One possible reason why we haven't found any intelligent life in the cosmos the Great Filter argument, which says that very few civilizations make it to the advanced spacefaring stage.

Peculiar James Webb Space Telescope observations seem to show gargantuan black holes in the earliest moments of the universe. New research may explain how they formed, thanks to primordial "seeds".

To explore the galaxy and hunt for resources, intelligent aliens might need to turn their home stars into natural spaceships, a new paper suggests. A few known star systems might fit the bill.

Giant filaments crisscross the universe, connecting galaxy clusters like superhighways between cities. But due to their complex shapes, they are stubbornly difficult to measure.

To explain why dark matter particles haven't come up in any direct detection experiments, physicists have wondered if it may be a kind of particle known as an axion.