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Message: <blockquote data-quote="hemalsilva" data-source="post: 11544986" data-attributes="member: 7335">Monster Black Holes Are Most Massive Ever DiscoveredScientists have discovered the largest black holes yet, and they're far bigger than researchers expected based on the galaxies in which they were found.The discovery suggests we have much to learn about how monster black holes grow, scientists said.All large galaxies are thought to harbor super-massive black holes at their hearts that contain millions to billions of times the mass of our sun. Until now, the largest black hole known was a mammoth dwelling in the giant elliptical galaxy Messier 87. This black hole has a mass 6.3 billion times that of the sun.<a href="http://www.space.com/images/i/13672/original/black-hole-center-galaxy.jpg?1323096402" target="_blank"><img src="http://i.space.com/images/i/13672/i01/black-hole-center-galaxy.jpg?1323096402" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a>Image of the center of our Galaxy from laser-guide-star adaptive optics on the Keck Telescope. This is an HKL-band color mosaic, where H(1.8 microns) = blue, K(2.2 microns) = green, and L(3.8 microns) = red. More massive black holes have larger event horizons, the region within which even light can not escape. If a ten billion solar mass black hole resided at the Galactic center, its immense event horizon would be visible (illustrated by the central black disk). The actual black hole at the Galactic center is 2500 times smaller. <a href="http://www.space.com/images/i/13673/original/black-hole-immense-size.jpg?1323096703" target="_blank"><img src="http://i.space.com/images/i/13673/i01/black-hole-immense-size.jpg?1323096703" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a>This figure shows the immense size of the black hole discovered in the galaxy NGC 3842. NGC 3842, shown in the background image, is the brightest galaxy in a rich cluster of galaxies. The black hole is at its center and is surrounded by stars (shown as an artist's concept in the central figure). The black hole is seven times larger than Pluto's orbit. Our solar system (inset) would be dwarfed by it.<a href="http://www.space.com/13819-black-holes-largest-massive.html" target="_blank">READ MORE </a></blockquote>

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