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2005-11-29 15:45:00

Cambridge, MA -- Astronomers using NASA's Spitzer Space Telescope have discovered a remarkably small brown dwarf surrounded by a dusty disk. The brown dwarf contains only about 8 times the mass of Jupiter, making it one of the smallest known brown dwarfs. It is even smaller than several planets around other stars, leading to the question of whether any objects that form from the disk around it should be considered planets or moons. "There are two camps when it comes to defining planets...