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very colourfull nebula.
one of the brightest known nebulas.
three views of the veil nebula taken by the hubble space telescope
cat's eye nebula hubble remix
officially known as ngc 2736, the pencil nebula is part of the huge vela supernova remnant.
the pelican nebula in the constellation cygnus, the swan.
a very red and dashing nebula. beautiful...
nebula which seems to resemble a human eye.
double, double toil and trouble; fire burn, and cauldron bubble -- maybe macbeth should have consulted the witch head nebula. this suggestively shaped reflection nebula is associated with the bright star rigel in the constellation orion. more formally known as ic 2118, the witch head nebula glows primarily by light reflected from bright star rigel, located just off the upper right edge of the full image. fine dust in the nebula reflects the light. the blue color is caused not only by rigel's blue color but because the dust grains reflect blue light more efficiently than red. the same physical process causes earth's daytime sky to appear blue, although the scatterers in earth's atmosphere are molecules of nitrogen and oxygen. the nebula lies about 1000 light-years away.
explanation: of course, the flame nebula is not on fire. also known as ngc 2024, the nebula's suggestive reddish color is due to the glow of hydrogen atoms at the edge of the giant orion molecular cloud complex some 1,500 light-years away. the hydrogen atoms have been ionized, or stripped of their electrons, and glow as the atoms and electrons recombine. but what ionizes the hydrogen atoms? in this close-up view, a dark lane of absorbing interstellar dust stands out in silhouette against the hydrogen glow and actually hides the true source of the flame nebula's energy from optical telescopes. behind the dark lane lies a cluster of hot, young stars, seen at infrared wavelengths through the obscuring dust. a young, massive star in that cluster is the likely source of energetic ultraviolet radiation that ionizes the hydrogen gas in the flame nebula.
explanation: cones, pillars, and majestic flowing shapes abound in stellar nurseries where natal clouds of gas and dust are buffeted by energetic winds from newborn stars. a well-known example, the cone nebula within the bright galactic star-forming region ngc 2264, was captured in this close-up view from the hubble space telescope's advanced camera for surveys. while the cone nebula, about 2,500 light-years away in monoceros, is around 7 light-years long, the region pictured here surrounding the cone's blunted head is a mere 2.5 light-years across. in our neck of the galaxy that distance is just over half way from the sun to its nearest stellar neighbor, alpha centauri. the massive star ngc 2264 irs, seen by hubble's infrared camera in 1997, is the likely source of the wind sculpting the cone nebula and lies off the top of the image. the cone nebula's reddish veil is produced by glowing hydrogen gas.
explanation: when stars form, pandemonium reigns. a textbook case is the star forming region ngc 2170. visible above are red glowing emission nebulas of hydrogen, blue reflection nebulas of dust, dark absorption nebulas of dust, and the stars that formed from them. the first massive stars formed from the dense gas will emit energetic light and winds that erode, fragment, and sculpt their birthplace. and then they explode. the resulting morass is often as beautiful as it is complex. after tens of millions of years, the dust boils away, the gas gets swept away, and all that is left is a naked open cluster of stars.
this dramatic image offers a peek inside a cavern of roiling dust and gas where thousands of stars are forming. the image, taken by the advanced camera for surveys (acs) aboard nasa's hubble space telescope, represents the sharpest view ever taken of this region, called the orion nebula. more than 3,000 stars of various sizes appear in this image.
pictures of different nebulas taken with the hubble space telescope. ignore the music...unless you like it. but it is a beautiful universe we reside in.
"the pillars of creation"
wonderful...
aka. "the stairway to heaven"
eye candy.
a nice big shot.
by greg martin. very colourful!
orion nebula
the crab nebula
short film about orion nebula ( by the way if any one could tell me how to upload films above 100mb i would be gratful )
the hubble space telescope captured this image of the stingray nebula, the youngest known planetary nebula. in this image, the bright central star is in the middle of the green ring of gas. its companion star is diagonally above it at 10 o'clock. the red curved lines represent bright gas that is heated by a "shock" caused when the central star's wind hits the walls of the bubbles. the nebula is as large as 130 solar systems, but, at its distance of 18,000 light-years, it appears only as big as a dime viewed a mile away. the colors shown are actual colors emitted by nitrogen (red), oxygen (green) and hydrogen (blue).
