For years, astronomers have searched for the origins of ultra-high-energy cosmic rays, the most powerful particles in the universe. These energetic travelers move at nearly the speed of light, packing ...

The most powerful cosmic rays in the universe currently have no explanation. New research suggests that exotic, ...

The rate of stars going supernova near Earth appears to match two mass extinctions -- 372 million years ago and 445 million ...

Engineers at NASA’s Jet Propulsion Laboratory in Pasadena, California, sent a command for Voyager 1 to power down its cosmic ...

Voyager 1 crossed into interstellar space in 2012, followed by Voyager 2 in 2018, making them the only spacecraft to operate ...

Opinion High energy neutrinos are the coolest particles in astrophysics. Born in distant cosmic cataclysms, they speed ...

So their deep dive into the very beginning of life as we know it revealed that water was born from epic rays of light about ...

Researchers from Los Alamos National Laboratory have discovered that cosmic-ray showers seem to play a pivotal role in ...