Ultra-high energy cosmic rays are energized by magnetic turbulence, not shock acceleration, according to new research.

NASA astronauts Nick Hague and Suni Williams completed a six-hour spacewalk to repair and upgrade equipment outside the ...

The sun, a searing hot sphere of gas primarily composed of hydrogen and helium, boasts surface and outer atmospheric ...

Scientists have come a step closer to understanding how collisionless shock waves—found throughout the universe—are able to ...

Subatomic particles called muons could measure pressure changes in supercell thunderstorms and the twisters they kick up.

THE enormous energy possessed by the cosmic rays has given rise to many speculations as to how they could be generated, which have gone deep into the properties of the ultimate particles ...

Scientists have come a step closer to understanding how collisionless shock waves -- found throughout the universe -- are able to accelerate particles to extreme speeds.

Cosmic rays and their byproduct, muons, may help scientists study tornado formation by detecting pressure changes remotely. This technique would avoid the need for direct measurements within ...

Scientists explore how cosmic rays and muons could reveal tornado-forming pressure changes in supercell storms ...

A distant supermassive black hole, the mysterious 1ES 1927+654, emits X-ray pulses unlike anything previously recorded, which ...