An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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cosmic dust
  غبار ِ کیهانی، گرد ِ ~  
qobâr-e keyhâni (#), gard-e ~ (#)
Fr.: poussière cosmique  

Aggregations of matter on the order of a fraction of a micron across, irregularly shaped, and composed of → carbon and/or → silicates found in the → interstellar medium. Dust absorbs stellar light causing large dark patches in regions of the → Milky Way Galaxy and dark bands across other galaxies.

See also: → cosmic; → dust.