cosmic ray

NOUN

high-energy radiation from space

Synonyms

WEAK

aurora particles cosmic particle cosmic particles intergalactic matter radiation

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Their aim is to understand why some cosmic ray sources emit neutrinos while others do not, as well as pinpoint where and how those neutrinos are produced.

From Science Daily • Nov. 26, 2025

Zhang's team will next examine cosmic ray sources by merging IceCube Neutrino Observatory data with results from X-ray and gamma-ray telescopes.

From Science Daily • Nov. 26, 2025

This resolves a long-standing tension in cosmic ray research: while supernova remnants are known to produce cosmic rays, both data and theory suggest they cannot account for the energies seen at and above the "knee."

From Science Daily • Nov. 16, 2025

In 1948, Bristol's cosmic ray physics team, led by Professor Cecil Powell, were hunting for new fundamental particles.

From BBC • Jul. 23, 2024

A cosmic ray striking a different gene, producing a different mutation, can have small consequences early but profound consequences late.

From "Cosmos" by Carl Sagan