Definition of dark nebula in English:

dark nebula

Line breaks: dark neb¦ula

noun

Astronomy
  • A non-luminous nebula of dust and gas which is observable because it obscures light from other sources.
    More example sentences
    • In the inner regions of dark nebulae important events take place, such as the formation of stars and masers.
    • There are different forms of nebulas, dark nebulas, emission nebulas and celestial nebulas.
    • In the Cigar Galaxy, there are blank spots where it appears there are not any stars, just dark nebulas.

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Word of the day skosh
Pronunciation: skəʊʃ
noun
a small amount; a little