August 04, 2005
Intergalactic Hide and Seek

Scientists have for years been using an averaging technique to figure out how many Quasars, supermassive objects as big as galaxies but thousands of times brighter, are actually out there in the universe. The problem was that when they actually got around to counting these objects, they came up far short. Now a new orbital observatory seems to be finding where the rest of them are hiding:

Most of the biggest black holes in the universe have been eating cosmic meals behind closed doors - until now.

With its sharp infrared eyes, NASA's Spitzer Space Telescope (SST) peered through walls of galactic dust to uncover what may be the long-sought missing population of hungry black holes known as quasars.

Posted by scott at August 04, 2005 02:42 PM

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