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Image of the day

 
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Yeo
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Joined: 06 Apr 2005
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PostPosted: Wed Oct 04, 2006 6:37 pm    Post subject: Image of the day Reply with quote


This artist's concept depicts a supermassive black hole at the center of a galaxy. NASA's Galaxy Evolution Explorer found evidence that black holes -- once they grow to a critical size -- stifle the formation of new stars in elliptical galaxies. Black holes are thought to do this by heating up and blasting away the gas that fuels star formation.

The blue color here represents radiation pouring out from material very close to the black hole. The grayish structure surrounding the black hole, called a torus, is made up of gas and dust. Beyond the torus, only the old red-colored stars that make up the galaxy can be seen. There are no new stars in the galaxy.

Image credit: NASA/JPL-Caltech
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Plex
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Joined: 01 May 2005
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PostPosted: Wed Oct 04, 2006 7:20 pm    Post subject: Reply with quote

fantastic shot...it is amazing everyday there is new discovery of what is out there...
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Yeo
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Location: Far Rockaway, NY

PostPosted: Fri Oct 13, 2006 11:12 am    Post subject: Reply with quote



This "family portrait," a composite of the Jovian system, includes the edge of Jupiter with its Great Red Spot, and Jupiter's four largest moons, known as the Galilean satellites. From top to bottom, the moons shown are Io, Europa, Ganymede and Callisto. The Great Red Spot, a storm in Jupiter's atmosphere, is at least 300 years old. Winds blow counterclockwise around the Great Red Spot at about 250 miles an hour. The storm is larger than one Earth diameter from north to south, and more than two Earth diameters from east to west. In this oblique view, the Great Red Spot appears longer in the north-south direction.

Europa, the smallest of the four moons, is about the size of Earth's moon, while Ganymede is the largest moon in the solar system.

The Solid State Imaging system aboard NASA's Galileo spacecraft obtained the Jupiter, Io and Ganymede images in June 1996, while the Europa images were obtained in September 1996. Because Galileo focused on high resolution imaging of regional areas on Callisto rather than global coverage, the portrait of Callisto is from the 1979 flyby of NASA's Voyager spacecraft.

Launched in October 1989, Galileo's mission was to conduct detailed studies of the giant planet, its largest moons and the Jovian magnetic environment.

Image credit: NASA
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Plex
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PostPosted: Fri Oct 13, 2006 12:43 pm    Post subject: Reply with quote

very interesting..
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MG Man
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PostPosted: Fri Oct 13, 2006 7:31 pm    Post subject: Reply with quote

that black hole shot is scary Neutral
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wagonrunner
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Joined: 03 Sep 2005
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PostPosted: Sat Oct 14, 2006 6:11 am    Post subject: Reply with quote

black hole pic is an artist's concept meng.
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Fuzz Windu
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PostPosted: Sat Dec 09, 2006 8:01 pm    Post subject: Reply with quote

still scary
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