Posted May 03, 2008 at 06:40AM by David T. Listed in: Astronomy, Celestial Bodies Tags: supernova, constellation, Nebula
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An example of an emission nebula - Image 1The cosmos is rife with wonders that have been discovered and that have yet to be discovered. One example is the former is NCG 6188. Don't let its scientific sounding name fool you. A photograph of this emission nebula reveals it to be more beautiful than its name lets on. View the picture in the full article after the jump.

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Posted Apr 23, 2008 at 06:17AM by David T. Listed in: Astrophysics, Astronomy, Celestial Bodies Tags: constellation, Nebula
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The Fox Fur Nebula as seen from one angle - Image 1Few would argue that there are lots of beautiful sights to see in outer space. In fact, one such cosmic wonder is known as the Fox Fur Nebula, which was viewed through the Canada-France-Hawaii Telescope (CFHT). Check out the nebula in the full article, after the jump, why don't you?

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Posted Apr 19, 2008 at 12:55PM by Glen D. Listed in: Astronomy, Celestial Bodies Tags: NASA, Hydrogen, Africa, Astronomer, Nebula, South Africa
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Running Chicken Nebula - Image 1Stars and clouds of gas often form breathtaking patterns in space. Scientists at NASA have grown fond over the years of giving creative names to these celestial bodies. In a new photo that the agency is showing off, the Running Chicken Nebula is displayed in crimson glory. You can check it out by clicking on the "read more" link below.

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Posted Apr 07, 2008 at 10:39PM by Abraham A. Listed in: Celestial Bodies Tags: NASA, constellation, New Mexico, Orion, Nebula, Mexico
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Horsehead Nebula - Image 1After showing you a solar tsunami as it occurs, we bring you this horse-shaped image from your left. See it? That's the Horsehead Nebula from the Orion constellation. Using only a small telescope, the Star Shadows Remote Observatory from New Mexico, USA was able to photograph its entire surroundings. Head over the full article to see the Horsehead Nebula in its fullest majesty.

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Posted Aug 16, 2007 at 03:24AM by Charles D. Listed in: News, Astronomy, NASA, Celestial Bodies Tags: NASA, Caltech, galaxy, Nebula
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Mira, a red giant - Image 1Something has caught the eye of the National Aeronautics and Space Administration's (NASA) Galaxy Evolution Explorer. The culprit: a red-giant named Mira. As seen in the image, the star was seen exhibiting a trailing tail-like material from the outer envelope over 13 light-years in length.

The phenomenon was detected recently even though, according to studies, the formation of the tail-like streak has been present over the past 30,000 years. The only reason why this wasn't noticed before was the fact that the emission radiated by Mira was caused by ultraviolet light; a source that the Galaxy Evolution Explorer is very sensitive to.

Also, because Mira moves at a comparatively faster rate than most red giants, the appearance of a bow shock has also been noted. This build up of gas in front of the star is thought to be the cause of its turbulent, tail-like appearance as it trails across the cosmos.

Mira was similar to our own sun billions of years ago. As such, this phenomenon may give a foreshadowing as to the future of our own local star. It has been theorized that upon the expulsion of all its remaining planetary gases into space, Mira will eventually form a colorful shell called a planetary nebula. In time, once the nebula fades, the burnt-out core of the star will be the only thing remaining left of it and thus forming a white dwarf.

Researchers at the California Institute of Technology were the ones responsible for this discovery through the Galaxy Evolution Explorer. James D. Neill of Caltech had this to say regarding Mira:

It's amazing to discover such a startlingly large and important feature of an object that has been known and studied for over 400 years. This is exactly the kind of surprise that comes from a survey mission like the Galaxy Evolution Explorer.



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Posted Feb 17, 2007 at 05:27AM by Glen D. Listed in: Astronomy Tags: Nebula
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What could happen to the Sun... - Image 1Hubble's Wide Field Planetary Camera 2 was able to catch the final blaze of glory for the NGC 2440, taking off its hot mantle of outer material and revealing the the bright remnant of a star which used to be similar to our sun- a white dwarf.

The white dwarf is the bright spot at the center of the image. This phase in the star's life is when the size of the body is at its smallest, but it's extremely dense and very hot with surface temperatures hitting more than 200,000 degrees Celsius and gives off a barrage of ultraviolet light which lights up the gas cloud surrounding it.

The two lobes of matter visible in the image is attributed to the violent nature of the nebula, wherein the star's death occurred in several phases. In each stage, material was cast in different directions which resulted in the formation of the two lobe-like masses of matter hurtling freely into space.

Don't worry, though. Humans probably won't be around too long to see this happen. Scientists say that our Sun is still midway through its life and should be millions and millions of years away from its last gasp.

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Posted Aug 15, 2006 at 12:58PM by KJM Listed in: Astronomy, Celestial Bodies, Space Missions Tags: Ohio State University, Orion, Nebula
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OrionNASA's Spitzer Space Telescope has discovered well over 2,000 planet-forming discs surrounding young stars in the Orion Nebula. These were observed indirectly using infrared photography, which detects the temperature variations indicating the existence of the discs.

The Orion Nebula is 1,450 light years from Earth, and is about 240 light years across. The image of Orion was released yesterday, and shows objects smaller than our own Sun in that region for the first time. Thomas Megeath of the University of Toledo said, "This is the most complete census of young stars with discs in the Orion cloud complex...basically, we have a census of potential solar systems, and we want to know how many are born in the cities, how many in small towns, and how many out in the countryside."

Three-fifths of the stars that had discs were found in large clusters. One fourth of them were solitary, with the remainder belonging to small clusters. This has caused astronomers to rethink their earlier belief that 90% of all stars are born in clusters. The researchers estimate that the number of stars with proto-planetary discs in Orion may run as high as 70%. "It is an interesting question why this number isn't 100%," Megeath stated. "Eventually, we may be able to understand why some stars don't have discs."

Click on the above left image to see the Spitzer image in all its glory.

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