Supernova remnants could briefly become the most extreme particle accelerators in the cosmos, surpassing even the Large ...

Mysterious cosmic rays traveling at speeds approaching that of light constantly pelt Earth’s upper atmosphere from the depths of space, creating high-energy collisions that dwarf those produced ...

Cosmic rays are high-energy charged particles, mostly protons or heavier atomic nuclei, that constantly bombard Earth from ...

These cosmic rays typically come from the extremely distant universe, from ultrapowerful events such as supernovas and quasars. Cosmic rays coming from ultrapowerful sources in the distant ...

For decades, researchers assumed the cosmic rays that regularly bombard Earth from the far reaches of the galaxy are born when stars go supernova — when they grow too massive to support the fusion ...

Cosmic rays aren’t actually rays. They’re fast-moving particles that carry an extraordinary amount of energy and continuously bombard the Earth from every direction. The most popular ...

Most of the energetic cosmic ray particles—mainly protons—have a galactic origin; some of them enter the solar system and bombard the Earth's atmosphere. These cosmic ray particles collide ...

The technique used by the researchers hinges on powerful cosmic rays from deep space that regularly bombard Earth. When these energetic, charged particles that have travelled from interplanetary ...

The sun is more than a heat lamp for Earth. It is constantly spitting streams of solar particles our way and, sometimes, powerful pockets of solar material that can jolt our planet. Now ...

This is happening because, centuries or millennia after a supernova, energetic, charged particles called cosmic rays bombard nearby planetary systems. Cosmic rays move fast, but they’re still ...