: very fine particles of solid matter found in any part of the universe
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From studies on the biggest and brightest galaxies, to the most distant, active supermassive black holes, and even analysis on cosmic dust and stellar evolution, JWST has contributed to many new perspectives on the early universe during its first two years of observation.—Samantha Mathewson, Space.com, 13 Jan. 2025 Observing with X-rays, which can penetrate cosmic dust, offers a way around this problem.—Carlyn Kranking, Smithsonian Magazine, 23 July 2024 Warm hydrogen glows pinkish-purple in the image, while cosmic dust, composed of tiny grains of siliceous (rocky) and carbonaceous (sooty) material, appears reddish-brown.—Phil Plait, Scientific American, 14 June 2024 Although the existence of dust in space continues to be surrounded by intrigue, an international team of astronomers recently identified a type Ia supernova creating cosmic dust.—Jack Knudson, Discover Magazine, 9 Feb. 2024 See All Example Sentences for cosmic dust
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