Portal:Astronomy/Picture/24 June 2005

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The Trifid Nebula is a star-forming H II region, so called because it is divided into three lobes by lanes of dust. It lies about 9,000 light years away from Earth in the constellation of Sagittarius. This Hubble Space Telescope image reveals a jet of material emerging from a cloud of dust, propelled by a young star within.

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