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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.

My colleagues in planetary science and I analyze images from night sky camera networks to study cosmic dust, small asteroids and debris left behind by comets.

From Science Daily • May 14, 2026

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

From Science Daily • Nov. 13, 2025

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

From Space Scoop • Mar. 27, 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

Two atoms of cosmic dust unite, cohere— And lo the building of a world begun.

From The Feast of the Virgins and Other Poems by Gordon, Hanford Lennox



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