Wednesday, June 29, 2011

Early universe's brightest object detected

June 29, 2011 - CBS News
(Space.com) Scientists have discovered the most brilliant object yet from the infancy of the cosmos, a super-bright galaxy that challenges notions of how extraordinarily massive black holes evolved.

The brilliant enigma is a quasar, a stage that some galaxies go through when lots of material falls into the supermassive black holes at their cores, giving off light as it does so.
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The distance to the quasar was then determined from observations made with the European Southern Observatory's Very Large Telescope and the Gemini North Telescope. Based on how greatly the light from the quasar was stretched during its journey by the expansion of the universe, the scientists estimate the quasar existed only 770 million years after the Big Bang.
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