Rho Ophiuchi is at the center of the blue nebula on the lower left. Antares, a red supergiant, lights up the yellow-red clouds. The distant globular cluster M4 is just upper left of center. Star clouds more colorful than humans can see, emitting light across the electromagnetic spectrum. Fine dust illuminated from the front by starlight appears blue. Gaseous clouds whose atoms are excited by ultraviolet starlight appear reddish. Backlit dust clouds block starlight and appear dark. (NASA…
The Centre of a Rose - Stellar Winds in NGC 2237. This image detects the centre of a Nebula commonly known as the Rose Nebula. The stars of this Nebula were born out of its dust and the Open Star Cluster in the centre (also known as NGC 2244) has several O-type stars that generate large amounts of radiation and send Stellar Winds into the Nebula.
The Horsehead Nebula is a cloud of ionized-hydrogen in the constellation Orion. These clouds are lit from within by young, hot stars. The interstellar dust absorbs the light from part of the ionized cloud creating this beautiful contrast. Image Credit: NASA, NOAO, ESA and The Hubble Heritage Team (STScI/AURA)
Hubble has released a spectacular series of images of a section of the Carina Nebula in commemoration of its 20th Anniversary. This single pillar of gas and dust measures three light years in height and is being blown apart by infant stars buried within it and eaten away by the light from the stars that surround it.