Rosette Nebula (NGC 2237). (Image: Adam Block & Tim Puckett) The red color is hydrogen gas energized by a hot star - it's an emission nebula. The “stem” is formed by a trail of the same glowing hydrogen gas. The nebula is 5000 light years away in the constellation Monoceros.Mona Evans "Monoceros the Unicorn"

NGC 7635: The Bubble Nebula

5,000 light-years away... lies a Trifid #Nebula which looks somewhat like a heart.

Planetary nebulae can look simple, round, and planet-like in small telescopes. But images from the orbiting Hubble Space Telescope have become well known for showing these fluorescent gas shrouds of dying Sun-like stars to possess a staggering variety of detailed symmetries and shapes.

The Butterfly Nebula from Upgraded Hubble

This fantastic skyscape lies near the edge of NGC 2174 - a star forming region about 6,400 light-years away in the nebula-rich constellation of Orion. It follows mountainous clouds of gas and dust carved by winds and radiation from the region's newborn stars, now found scattered in open star clusters embedded around the center of NGC 2174, off the top of the frame.

NGC 6543 Halo of the Cat's Eye. The Cat's Eye Nebula is one of the best known planetary nebulae in the sky. Its symmetries are seen in the very central region of this false-color picture, pro-cessed to reveal the enormous but extremely faint halo of gaseous mater-ial, over 3 ly across, which surrounds the brighter, familiar planetary nebula. Made with data from the Nordic Optical Telescope, Canary Islands.

~~Dust and the Helix Nebula ~ Dust makes this cosmic eye look red. The eerie Spitzer Space Telescope image shows infrared radiation from the well-studied Helix Nebula (NGC 7293) a mere 700 light-years away in the constellation Aquarius |

The Heart Nebula, IC 1805, Sh2-190, 7500 light years away from Earth. Located in the Perseus Arm of the Galaxy in the constellation Cassiopeia. This is an emission nebula showing glowing gas and darker dust lanes.

NGC 6888: The Crescent Nebula

the rosette nebula

HH-222: The Waterfall Nebula. The structure seen in the region of NGC 1999 in the Great Orion Molecular Cloud complex is one of the more mysterious structures yet found on the sky. The elongated gaseous stream stretches about ten light years and emits an unusual array of colors.

The Horsehead Nebula in Infrared from Hubble Image Credit: NASA, ESA, and The Hubble Heritage Team (STSci/AURA)

Orion nebula

The Ring Nebula (M57). The central ring of the Ring Nebula is about one light-year across and 2,000 light-years away. This image was taken by the Hubble Space Telescope. Credit: NASA.



Inside the Eagle Nebula: astronomers have found evidence in the image data pointing to the remnant of a supernova explosion with an apparent age of 6,000 years. If true, the expanding shock waves would have destroyed the visible structures, including the famous pillars. But because the Eagle Nebula is some 6,500 light-years distant, their destruction won't be witnessed for hundreds of years.

NGC 6188 is an emission nebula located about 4,000 light years away in the constellation Ara. The bright open cluster NGC 6193, visible to the naked eye, is responsible for a region of reflection nebulosity within NGC 6188.

The Three Nebulas