Scientists have revealed a hidden trigger of lightning that could resolve a centuries-old weather mystery. Earth is struck by some 44 bolts of lightning each second, on average. Despite this, ...

Astrophysicists understand the origins of most cosmic rays. Any time there is an energetic event in the universe, it's likely ...

Trillions upon trillions of cosmic rays hit the Earth every day. The vast majority of them are blocked by Earth’s atmosphere and magnetic field, but sometimes they will strike particles in the ...

That "something else" appears to originate from space.

Here’s how it works. The "cosmic pinwheel" that astronomers feared could one day shower Earth with lethal gamma rays may not be as dangerous as once thought, a new study suggests. At the heart ...

The Čerenkov detectors pick up particles reaching the ground from a cosmic-ray shower, revealing their energy and trajectory; the telescopes expose the development of a shower by detecting the ...

This 3-D image shows a cosmic-ray muon producing a large shower of energy as it passes through the NOvA far detector in Minnesota. Disclaimer: AAAS and EurekAlert! are not responsible for the ...

"We analyzed these observations with a cosmic ray shower (CRS) and found that these seemingly strange features can be consistently explained," they added. "A CRS provides an ionized path in the ...