Dust grains definition

  • not the dust one finds throughout the house, which is typically fine bits of textile, dust, or lifeless epidermis cells. Rather interstellar dust grains are much smaller clumps, from the purchase of a portion of a micron across, irregularly shaped, and composed of carbon and/or silicates. Dust is many evident by its absorption, causing big dark patches in regions of our Milky Way Galaxy and dark rings across other galaxies. by Francene Report definition
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