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Cosmic rays or astroparticles are high-energy particles or clusters of particles (primarily represented by protons or atomic nuclei) that move through space at nearly the speed of light. They originate from the Sun, from outside of the Solar System in our own galaxy, [1] and from distant galaxies. [2] .
Cosmic ray, a high-speed particle—either an atomic nucleus or an electron—that travels through space. Most of these particles come from sources within the Milky Way Galaxy and are known as galactic cosmic rays (GCRs). The rest of the cosmic rays originate either from the Sun or, almost certainly in.
What are cosmic rays? Cosmic rays are actually particles from space that travel across the universe. They started out as atoms that had their outer layers stripped away and are now just nuclei. They move extremely fast—nearly the speed of light. Trillions upon trillions of cosmic rays hit the Earth every day.
Cosmic rays are atom fragments that rain down on the Earth from outside of the solar system. They blaze at nearly the speed of light and have been blamed for...
Cosmic rays are high-energy particles originating from outer space that travel through the universe at nearly the speed of light. They consist predominantly of protons and atomic nuclei and fall into two main types: primary and secondary cosmic rays.
They are high energy particles that move through space at nearly the speed of light. Most cosmic rays are atomic nuclei stripped of their atoms with protons (hydrogen nuclei) being the most abundant type but nuclei of elements as heavy as lead have been measured.
Cosmic rays are a puzzling form of radiation that is constantly raining down on us from space. They are made up of electrically charged, subatomic particles that crash into our atmosphere, where they are broken up and fall to Earth in even smaller fragments.
Cosmic rays are a form of high-energy radiation that originate from outside our solar system. When they reach Earth, the rays collide with particles in the upper atmosphere to produce a “shower” of particles, including muons. (Image: CERN)
Cosmic rays are tiny subatomic particles racing through the universe at nearly the speed of light — and they're not so nice.
In this video, learn about cosmic rays, the quintillions of atomic nuclei that strike Earth's atmosphere at nearly light-speed every day.