Credit & Copyright: Anglo-Australian Telescope BoardExplanation: Sometimes the simplest shapes are the hardest to explain. For example, the origin of the mysterious cone-shaped region located just below the center of the above picture remains a mystery. The dark region clearly contains much dust which blocks light from the emission nebula and open cluster NGC 2264 behind it. One hypothesis holds that the cone is formed by wind particles from an energetic source blowing past the Bok globule at the head of the cone.
Scale of the Universe Debate in April 1996
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NASA Official: Jay Norris. Specific rights apply.
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& Michigan Tech. U.
Based on Astronomy Picture Of the Day
Publications with keywords: nebula - Cone nebula
Publications with words: nebula - Cone nebula