cosmic dust

American  

noun

Astronomy.

1. fine particles of matter in space.

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cosmic dust British  

noun

1. fine particles of solid matter occurring throughout interstellar space and often collecting into clouds of extremely low density See also nebula

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Etymology

Origin of cosmic dust

First recorded in 1880–85

Example Sentences

See Examples For:

cosmic dust

Researchers will use those observations to investigate additional topics including supermassive black holes, gravitational lenses, galaxy formation, reionization and cosmic dust.

From Science Daily ● Aug. 28, 2026

The team also plans to assemble a detailed database of infrared fingerprints produced by different types of laboratory made cosmic dust.

From Science Daily ● Jul. 19, 2026

"The star has so little carbon that it suggests an early sprinkling of cosmic dust is responsible for making it," said Ji.

From Science Daily ● Apr. 4, 2026

Inside a specially designed chamber, the researchers recreated the harsh environment found in vast clouds of cosmic dust located thousands of light-years from Earth.

From Science Daily ● Jan. 21, 2026

If there were any large region in the arm of the nebula which had no single massive nucleus, the cosmic dust would gather about a number of smaller centres.

From The Story of Evolution by Joseph McCabe