cosmic ray
Cosmic rays are high-energy particles from outer space that have significant implications in fields like astrophysics and particle physics.
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Definition
C1Astrophysics
(technical, academic)High-speed particles, such as atomic nuclei or electrons, originating from outer space.
Example
- Scientists study cosmic rays to understand the fundamental properties of the universe.
- Cosmic rays can provide insights into the processes occurring in distant galaxies.
C1Physics
(technical, academic)Ionizing radiation composed of high-energy protons, nuclei, and other subatomic particles that bombard the Earth from space.
Example
- The Earth's atmosphere protects us from most of the harmful effects of cosmic rays.
- Cosmic rays can interfere with electronic equipment and affect astronaut safety.
Similar
Terms that have similar or relatively close meanings to "cosmic ray":