New research published by Michigan State University astrophysicists could help scientists answer a century-old question: ...

NTNU researchers may have found the answer to one of the big, unanswered questions in physics. The universe is full of different types of radiation and particles that can be observed here on Earth.

Particles racing through space at nearly the speed of light pack energy millions of times greater than anything we can create on Earth. For decades, these cosmic bullets have puzzled scientists: where ...

To reach this conclusion, scientists studied millions of data points captured by a cosmic ray detector on the ISS. The most energetic particles in the universe appear to emerge from sources within ...

New research published by Michigan State University astrophysicists could help scientists answer a century-old question: where ...

Cosmic rays are high-energy particles from outer space that strike Earth's atmosphere, generating showers of secondary ...

Cosmic rays can reach our planet with speeds driven by over a peta-electron volt, or PeV, of energy. (That’s a quadrillion electron volts—a hundred times higher than what can be achieved with ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Space scientists ...

Cosmic rays' power source has long remained a mystery, yet new research may finally provide the answer to where particle streams originate.

Every 44 minutes, a mysterious space object nearly 15,000 light-years away sends out a blast of radio waves and high-energy X ...

However, after reaching an altitude of 5,300 meters, Hess unveiled a natural source of high-energy particles from space. Today, we call those particles cosmic rays. Detecting these high energy ...