Ian Randall is Newsweek's Deputy Science Editor, based in Royston, U.K. His focus is reporting on science and health. He has covered archeology, geology, and physics extensively. Ian joined ...

We still don't fully understand what triggers lightning. A new study suggests that showers of cosmic rays may be the missing link.

That "something else" appears to originate from space.

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 ...

Cosmic rays are particles from outer space that travel across the universe. They can be made by the sun, by other stars exploding, and even black holes. They move extremely fast, nearly the speed of ...

The Pierre Auger Collaboration is making its data available online. Starting last month, about 70 cosmic-ray events are being posted every day on their website. This outreach exercise is intended ...