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The silhouette of the southern skies. The Coalsack Nebula is the most prominent dark nebula in the sky. Resting nearly 600 light-years away, this massive cloud of cold interstellar dust completely absorbs the light from the dense background starfields of the Milky Way, creating a striking cosmic void.
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Coalsack Nebula (Caldwell 99), dark nebula 600 light-years distant, a dense, interstellar cloud of hydrogen and cosmic dust, coated with water ice and organic molecules. Collections: Southern Celestial Hemisphere
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