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    The Witch Head Nebula. It glows from light reflected from bright supergiant Rigel - Orion's left foot! Although Rigel is blue, the nebula is blue because the dust scatters blue light more efficiently than the longer wavelengths. (Image: George Greany) ©Mona Evans, “Nebulae” www.bellaonline.c...

    Best astronomy images 2012: See the most beautiful images of the universe. - Slate Magazine

    The California nebula

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    NGC 6302: The Butterfly Nebula --- Jun. 7 --- Image Credit: NASA, ESA, and the Hubble SM4 ERO Team

    Nebula and Stars

    Blue Nebula. S)

    The core of our galaxy, seen in infrared light by the Spitzer Space Telescope. Blue light is from stars, green light is from polycyclic carbon molecules, yellow and red light is from the thermal glow of warm dust. This image spans approximately 1000 light years by 1600 light years. The galactic core is 26000 light years away.

    Rho Ophiuchus Nebula Complex This amazing complex of nebulosity revealed on long exposure color photographs is one of the most beautiful areas of the entire night sky. It contains dark nebulae where lanes of obscuring dust hide background stars, blue reflection nebulae where the dust is illuminated by nearby stars and red emission nebulae where the hot hydrogen gas itself is glowing.

    The Crab Nebula

    Know Your Nebulae

    nebula

    The Rosette Nebula --- Image Credit & Copyright: Brian Davis

    Crescent Nebula

    Nebula

    Remix Nebula

    Paxus Nero by Glenn Clovis

    Horsehead Nebula is small- center, left. Orion below.

    Orion, Rigel, blue super star lower right; Betelguese, red super star upper left. Beautiful skies.

    PrintCollection - Carina Nebula Mountaintop

    Nebulae.