The Boomerang nebula is the coldest known object in the Universe. Is colder, in fact, than the faint afterglow of the Big Bang, at a cosmologically crisp one degree Kelvin (minus 458 degrees Fahrenheit). Image © NRAO/AUI/NSF/NASA/STScI/JPL-Caltech
Stars usually create their most artistic displays as they die. Low-mass stars like our Sun and M2-9 (pictured above) Butterfly Nebula, transform themselves from normal stars to white dwarfs by casting off their outer gaseous envelopes. The expanded gas often forms an impressive display called a planetary nebula that fades gradually over thousand of years. Hubble Legacy Archive, NASA, ESA – Processing: Judy Schmidt
The Red Rectangle Nebula, so called because of its red color and unique rectangular shape, is a protoplanetary nebula in the Monoceros constellation. Also known as HD 44179, the nebula was discovered in 1973 during a rocket flight associated with the AFCRL Infrared Sky Survey called Hi Star.
The Pencil Nebula also known as NGC 2736, is pictured in a new image from ESO’s La Silla Observatory in Chile. This peculiar cloud of glowing gas is part of a huge ring of wreckage left over after a supernova explosion that took place about 11 000 years ago. This detailed view was produced by the Wide Field Imager on the MPG/ESO 2.2-metre telescope.
The beautiful image of dust, is from of the region surrounding the reflection nebula Messier 78 (NGC 2068), just to the north of Orion’s Belt. When viewed by Submillimetre-wavelength APEX (Atacama Pathfinder Experiment) telescope, observations are overlaid on the visible-light image in orange. Credit: ESO/APEX (MPIfR/ESO/OSO)
The Ring Nebula – M57 – is probably the most famous celestial band (except for the rings of Saturn). Expansive looping structures are seen to extend far beyond the Ring Nebula’s familiar central regions in this intriguing composite of ground based and Hubble Space Telescope images with narrow band image data from Subaru.