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Black Hole
Sh2-279 glows in Orion, about 1,500 light-years away. It is a cloud of ionized hydrogen inside a larger star-forming complex, near NGC 1977 and some of the constellation’s busiest nurseries. Hot young stars flood the gas with ultraviolet light, so it shines, and their radiation and winds carve filaments, dust lanes, and hollow cavities into the cloud. What remains is the material from which later stars may form. Image credit: Adam Block / Mount Lemmon Observatory
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