Red Rectangle Nebula. There is an aging binary star at the center of the nebula, which will probably eventually become a planetary nebula. Astronomers are still trying to work out what's going on in this complex nebula. (Image Credit: ESA, Hubble, NASA; Reprocessing: Steven Marx, Hubble Legacy Archive) Mona Evans "Monoceros the Unicorn" http://www.bellaonline.com/articles/art182324.asp
Fantastic shapes lurk in clouds of glowing hydrogen gas in NGC 6188, about 4,000 light-years away. The emission nebula is found near the edge of a large molecular cloud unseen at visible wavelengths, in the southern constellation Ara.
One-Armed Spiral Galaxy NGC 4725 Image Data: Subaru Telescope (NAOJ), Hubble Space Telescope, Additional Color data: Adam Block, Bob Franke, Maurice Toet - Assembly and Processing: Robert Gendler While most spiral galaxies, including our own Milky Way, have two or more spiral arms, NGC 4725 has only one. In this sharp color composite image, the solo spira mirabilis seems to wind from a prominent ring of bluish, newborn star clusters and red tinted star forming regions.
GALACTIC WHEELS-How many rings do you see in this new image of the galaxy Messier 94, also known as NGC 4736? While at first glance one might see a number of them, astronomers believe there is just one. This image was captured in infrared light by NASA's Spitzer Space Telescope.