Jun 16 2011
Hungry Black Holes Lurk at Edge of the Universe
13 billion light-years away, at the very edge of our observable universe, supermassive black holes lurk inside their galactic hosts, feeding.
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Jan 12 2011
Obese Black Hole Lurks in Our Backyard
Weighing in at the equivalent of 6.6 billion of our suns, this behemoth is located in a galaxy that neighbors our own.
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Nov 04 2010
Dead Quasar Leaves Ghost Behind
One of the most ravenous beasts in the universe has died, leaving behind an optical echo of its former self.
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Jul 20 2010
The Quasar That Acts Like a Reverse Gravitational Lens
The first known case of a quasar acting as a gravitational lens has been discovered, magnifying a distant galaxy and splitting it into two distinct images. Jennifer Ouellette chats with the discoverers.
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Jun 09 2010
Sloan Spots One Hundred Thousand Black Hole Behemoths
The Sloan Digital Sky Survey (SDSS) has created a database of millions of objects for astronomers to study including 105,783 quasars -- the active centers of distant galaxies with supermassive black holes lurking inside.
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Apr 16 2010
No Time Dilation for Distant Quasars?
Distant quasars are acting very strange: they're not acting strange. Usually the massive black holes powering these active galactic cores should exhibit some time dilation, but the most distant quasars don't.
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Apr 14 2010
Seeing in a New Light (and Searching for Extraterrestrials) with LOFAR
A new radio telescope is under construction, consisting of 44 stations spread across Europe. Not only will LOFAR peer deep into the cosmos with unprecedented detail, it will also listen out for ET's transmissions.
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Mar 18 2010
Primordial ‘Dust Free’ Monsters Lurk at the Edge of the Universe
On the very edge of our observable universe live two quasars. Both contain active and growing primordial black holes, but where's all the dust?
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