Thursday, January 31, 2013

Answer To Question 183

A183: The Eagle Nebula (M16) consists of enormous columns of cool interstellar hydrogen gas and dust that are about 7,000 light-years from Earth (in the constellation Serpens). This star-forming cloud (a stellar nursery) is illuminated by ultraviolet light that is emitted from newborn stars. The columns are called EGG's (Evaporating Gaseous Globules) because the ultraviolet light boils off some of the hydrogen gas (H2), shaping the nebula in a process called photo evaporation. The biggest column is about 1 light-year tall.

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