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 tends to absorb the red part of the light and reflect the blue. (Image: George Greany)
Sharpless 2-106, Sh2-106 or S106 for short, lies nearly 2,000 light-years from us. The nebula measures several light-years in length. It appears in a relatively isolated region of the Milky Way galaxy. A massive, young star, IRS 4 (Infrared Source 4), is responsible for the furious activity we see in the nebula. Twin lobes of super-hot gas, glowing blue in this image, stretch outward from the central star. This hot gas creates the “wings” of our angel. A ring of dust and gas orbiting the s
The "Peony Nebula," as discovered by NASA's Spitzer Space Telescope. This three color infrared composite shows 3.6-micrometre light in blue, 8-micrometre light in green, and 24-micrometre light in red. The Peony nebula is the reddish cloud of dust in and around the white circle, surrounding the Peony nebular star.
Hubble's Variable Nebula (NGC 2261) - Named for American astronomer Edwin P Hubble, this nebula is lit by the star R Monocerotis, bottom of nebula, in the constellation Monoceros (Greek : unicorn). There is probably a symmetrical counterpart of the fan-shape on the southern side of the star, but it is heavily obscured from view by dust lying between this lobe and our line of sight