The Horse Head Nebula is a cloud of ionized- hydrogen in the constellation Orion. The clouds are lit from within by young hot stars. The interstellar dust absobs the light from part of ionized cloud creating this beautiful contrast
Infrared Helix nebula This spectacular object, a dying star unraveling into space, is a favorite of amateur and professional astronomers alike. NASA’s Spitzer Space Telescope has mapped the expansive outer structure of the six-light-year-wide nebula,.