just–space:
“ NGC 6888: The Crescent Nebula : NGC 6888, also known as the Crescent Nebula, is a cosmic bubble about 25 light-years across, blown by winds from its central, bright, massive star. This sharp telescopic portrait uses narrow band image...

NGC 6888: The Crescent Nebula : NGC 6888, also known as the Crescent Nebula, is a cosmic bubble about 25 light-years across, blown by winds from its central, bright, massive star. This sharp telescopic portrait uses narrow band image data that isolates light from hydrogen and oxygen atoms in the wind-blown nebula. The oxygen atoms produce the blue-green hue that seems to enshroud the detailed folds and filaments. Visible within the nebula, NGC 6888s central star is classified as a Wolf-Rayet star . The star is shedding its outer envelope in a strong stellar wind, ejecting the equivalent of the Suns mass every 10,000 years. The nebulas complex structures are likely the result of this strong wind interacting with material ejected in an earlier phase. Burning fuel at a prodigious rate and near the end of its stellar life this star should ultimately go out with a bang in a spectacular supernova explosion. Found in the nebula rich constellation Cygnus, NGC 6888 is about 5,000 light-years away. via NASA

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Jupiter’s moon: C a l l i s t o

Callisto is one of the most heavily cratered objects in the solar system, and the lights are iced-over impact craters, reflecting the sun.