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 | The Cats Eye Nebula (NGC 6543) is the first planetary nebula ever to be discovered and is in the constellation of Draco. Structurally, it is one of the most complex nebulae known, with high resolution Hubble Space Telescope observations revealing remarkable structures such as knots, jets and sinewy arc like features.Modern studies reveal several mysteries. The intricacy of the structure may be caused in part by material ejected from a binary central star, but as yet there is no direct evidence that the central star has a companion.
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 | Against a stunning backdrop of thousands of galaxies, this odd-looking galaxy with the long streamer of stars appears to be racing through space, like a runaway pinwheel firework.Dubbed the Tadpole, this spiral galaxy is unlike the textbook images of stately galaxies. Its distorted shape was caused by a small interloper, a very blue, compact, galaxy visible in the upper left corner of the more massive Tadpole. The Tadpole resides about 420 million light years away in the constellation Draco.
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 | The Sombrero galaxy (Messier 104,M104, NGC 4594) is a spiral galaxy in the Virgo constellation, about 28 million light years away. The galaxys hallmark is a large, bright core, an unusually large central bulge, and a prominent dust lane, or band of dust in the galactic disc. From Earth, it is seen edge-on, which gives it the appearance of a sombrero about one-fifth of the diameter of the full moon. This brilliant galaxy was named the Sombrero because of its resemblance to the broad rim and high-topped Mexican hat.
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 | The Eskimo Nebula (NGC 2392) from the ground, resembles a persons head surrounded by a parka hood. From space, the nebula displays gas clouds so complex that they are not fully understood.It is surrounded by gas that composed the outer layers of a Sun-like star only 10,000 years ago. The visible inner filaments are ejected by strong wind of particles from the central star. The outer disk contains unusual light-year long orange filaments. NGC 2392 lies about 5000 light years away and is visible with a small telescope in the constellation of Gemini.
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 | The Red Spider Nebula(also known as Planetary Nebula NGC 6537 or NGC 6537)Surfing in Sagittarius constellation - not for the faint-hearted!
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 | Hubble Space Telescope looks through the center of one of the most massive galaxy clusters known, called Abell 1689 by its cosmic zoom lens.
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 | Hubble Space Telescope Image of Supernova 1994D in Galaxy NGC 4526
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 | this artists view the red supergiant supernova progenitor star (left) is exploding after having transferred about 10 solar masses of hydrogen gas to the blue companion star (right). This interaction process happened over about 250 years and affected the supernova explosion to such an extent that SN 1993J was later known as one of the most peculiar supernovae ever seen.
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 | SN 1987A was a supernova in the Large Magellanic Cloud, a nearby dwarf galaxy. It occurred approximately 50 kiloparsecs from Earth, the closest supernova since SN 1604, which occurred in the Milky Way itself. The light from the supernova reached Earth on February 23, 1987 and hence the name SN 1987A. It was modern astronomers first opportunity to see a supernova up close.
Since 50 kiloparsecs is approximately 164,000 light-years, the cosmic event itself happened approximately 164,000 years ago.
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 | In the direction of the constellation Canis Major, two spiral galaxies pass by each other like majestic ships in the night. The near-collision has been caught in images taken by the NASA/ESA Hubble Space Telescope.
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