The Radiation Risk of Air Travel: Should We Be Worried? New research reveals how flying exposes us to cosmic rays. It's time we were aware of the risks.

Mars Astronauts Risk 'Space Brain' Dementia From Cosmic Rays

Study finds cosmic rays increased heart risks among Apollo astronauts

Cosmic Rays Could Help Unlock the Secrets of the Pyramids There’s a long and colorful history of people trying to unlock the secret of how the Egyptian pyramids were built—and possibly find hidden rooms and corridors, for good measure. And now, a new international project aims to peer through the stone Read more ... walls of these ancient structures, using cosmic rays.

The Mystery of Cosmic Rays and Aurora A century later, cosmic rays are not fully understood and we are still searching for a complete explanation of what Victor Hess discovered.

The Mystery of Cosmic Rays and Aurora A century later, cosmic rays are not fully understood and we are still searching for a complete explanation of what Victor Hess discovered.

The Particle That Broke a Cosmic Speed Limit | Quanta Magazine Physicists are beginning to unravel the mysteries of ultrahigh-energy cosmic rays, particles accelerated by the most powerful forces in the universe.

Study: Cosmic Rays Could Damage Astronauts' Brain A NASA-funded study finds that exposure to radiation during a journey between Earth and Mars could cause subtle brain damage in astronauts. WSJ's Lee Hotz reports. Photo: NASA/JPL-Caltech/University of Arizona

Want To Do A Little Astrophysics? This App Detects Cosmic Rays Two physicists keen to detect a a very rare, high energy particle think you and I can help. The researchers are working on an app that would allow any smartphone to detect rare particles from space.