Each one travels at nearly the speed of light, and the fastest ones have energies trillions of times stronger than our most powerful particle accelerators. Astrophysicists understand the origins of ...

"Our data indicates that the Universe will expand forever, and at an accelerating rate," said Sehgal, who analyzed data ...

A powerful “Cosmic Tornado” has received a high-definition glow-up thanks to NASA’s James Webb Space Telescope (JWST). The ...

The cosmic pinwheel that astronomers feared could one day shower Earth with lethal gamma rays may not be as dangerous as once ...

What's the deadliest part of a supernova explosion? To estimate this we have to look at what the actual destructive ...

We know that regular supernovas pose no existential threat to life on Earth in the near-term. But there are other varieties ...

In a new study, researchers from the Los Alamos National Laboratory in New Mexico argue that this spark is often provided by cosmic ray showers. These are cascades of subatomic particles and ...

Deaths of nearby massive stars may have played a significant role in triggering at least two mass extinction events in ...

The spiral galaxy 2MASX J23453268−0449256 is located nearly 1 billion light-years away from Earth, and measures about three ...

Aterrifying glimpse of a possible fate for our galaxy, the Milky Way, has come to light thanks to the discovery of a cosmic ...

XRISM has uncovered how galaxy clusters evolve—violent mergers create turbulence, preventing hot gas from cooling. This ...

BL Lacertae, an enigmatic blazar, has shattered long-held classification norms, leaving astronomers baffled. Originally ...