Astronomers have made a historic discovery by directly detecting cosmic rays deep inside a dense, starless molecular cloud.

Add Yahoo as a preferred source to see more of our stories on Google. An illustration shows cosmic rays streaming at Earth. Earth is under constant bombardment by high-energy charged particles called ...

This may seem like the cry of a panicking news reporter in a lurid sci-fi tale, but it’s actually a scientific fact — albeit a slightly hyperbolic one. Mysterious cosmic rays traveling at speeds ...

It's 1961, and four intrepid cosmic explorers journey to space under the leadership of Reed Richards, where they encounter cosmic rays that change them forever. But what are cosmic rays?

The sprawling Auger Cosmic Ray Observatory in South America has produced its first major discovery while still under construction. The international Auger collaboration has traced the rain of ...

Many massive stars explode as supernovae. If cosmic-ray baths are common in such environments, then the thermal histories that shaped Earth's interior may be common as well. This realization has ...

Supermassive black holes are some of the most powerful engines in the universe. These giants sit at the centers of galaxies, including your own Milky Way, and sometimes become active by pulling in ...

Scientists have recently identified electrons and positrons with the highest energies ever recorded on Earth. They provide evidence of cosmic processes emitting colossal amounts of energy, the origins ...

EAST LANSING, Mich. – New research published by Michigan State University astrophysicists could help scientists answer a century-old question: where did galactic cosmic rays come from? Cosmic rays – ...

Michigan State University astrophysicists are closing in on one of space science’s biggest mysteries: where the galaxy’s most energetic particles come from. Their studies uncovered a pulsar wind ...

A groundbreaking ceremony will be held 9 a.m. MDT Saturday Aug. 28 in the desert southwest of Delta, Utah, for the Telescope Array – a Japanese and American cosmic ray observatory designed to find the ...

The origin of lithium (Li), the third element of the periodic table, has long been shrouded in mystery. This element, commonly found in cosmic rays as two stable isotopes, 6 Li and 7 Li, is crucial to ...