Thackerays Globules In Ic 2944
by Science Source
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Thackerays Globules In Ic 2944
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Science Source
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Photograph - Photograph
Description
Strangely glowing dark clouds float serenely in this image taken with the Hubble Space Telescope. These dense, opaque dust clouds - known as 'globules' - are silhouetted against nearby bright stars in the busy star-forming region, IC 2944. Astronomer A.D. Thackeray first spied the globules in IC 2944 in 1950. Globules like these have been known since Dutch-American astronomer Bart Bok first drew attention to such objects in 1947. But astronomers still know very little about their origin and nature, except that they are generally associated with areas of star formation, called 'HII regions' due to the presence of hydrogen gas.
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July 7th, 2014
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