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Definitions

cosmic dust

NOUN
small particles of matter found in outer space
Synonyms


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.

Researchers measure helium-3 to separate cosmic dust from material originating on Earth.

From Science Daily • Nov. 13, 2025

By measuring the amount of cosmic dust in sediment cores collected from three Arctic locations, the researchers recreated sea ice history over the past 30,000 years.

From Science Daily • Nov. 13, 2025

Most of the emitted light, for example visible light and X-ray, get blocked by thick layers of cosmic dust and can’t pass through the accretion disk around them.

From Space Scoop • Mar. 27, 2025

Unlike visible light, radio waves from hot gasses are not blocked that easily by cosmic dust.

From Space Scoop • Mar. 27, 2025

I swam motionless in vacancy, and, without a trace of terror or astonishment, watched the speck of cosmic dust we call the world fall away from me.

From The Country of the Blind, and Other Stories by Wells, H. G. (Herbert George)



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