Cosmic ray - Wikipedia
网页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 | Definition, Types, Effects, & Facts | Britannica
网页2024年9月7日 · 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? - University of Chicago News
网页2023年12月5日 · 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.
What are cosmic rays? | Space
网页2023年6月19日 · 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...
宇宙射线 - 百度百科
网页极高能宇宙射线（Ultra High Energy Cosmic Rays: UHECR）主要研究1018eV以上的宇宙射线。为什么会有这么高的能量？它们的来源在那里？它们是什么粒子？这些都是宇宙射线物理学家的研究课题。
Cosmic rays: particles from outer space - CERN
网页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)
宇宙線 - 维基百科，自由的百科全书
网页宇宙線亦稱為宇宙射线（Cosmic ray）、宇宙輻射（Cosmic radiation），是來自外太空的帶電高能次原子粒子。它們可能會產生二次粒子穿透地球的大氣層和表面。射線這個名詞源自於曾被認為是電磁輻射的歷史。
Cosmic Rays - Introduction - Imagine the Universe!
网页2017年9月6日 · Cosmic Rays. Cosmic rays provide one of our few direct samples of matter from outside the solar system. 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 …
Cosmic Rays Explained - Science Notes and Projects
网页2024年6月5日 · 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.
A century of cosmic rays | Nature
网页2012年3月21日 · The study of the primary cosmic radiation is a part of current astrophysics: by comparing the composition of cosmic rays with that of stars, we can identify their sources and use them to...
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