nebula

nebula,Astronomy,Orion,space
By Unknown
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Astrophotographer John Chumack was killing time while waiting for Comet ISON (a potentially spectacular comet making its closest approach to the sun in November and December) to rise when he captured this beautiful image of the Orion Nebula, M42 (NGC 1976) along with neighbor, De Mairan's Nebula M43.
nebula,Astronomy,science,jellyfish
Via: NASA
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Via NASA:

Normally faint and elusive, the Jellyfish Nebula is caught in this alluring telescopic mosaic. The scene is anchored right and left by two bright stars, Mu and Eta Geminorum, at the foot of the celestial twin while the Jellyfish Nebula is the brighter arcing ridge of emission with dangling tentacles below and right of center. In fact, the cosmic jellyfish is part of bubble-shaped supernova remnant IC 443, the expanding debris cloud from a massive star that exploded.

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