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"I am the world crier, & this is my dangerous career...

I am the one to call your bluff, & this is my climate."

—Kenneth Patchen (1911-1972)

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Monday, October 13, 2008

Mysterious New 'Dark Flow' Discovered in Space 

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"As if the mysteries of dark matter and dark energy weren't vexing enough, another baffling cosmic puzzle has been discovered.

Patches of matter in the universe seem to be moving at very high speeds and in a uniform direction that can't be explained by any of the known gravitational forces in the observable universe. Astronomers are calling the phenomenon 'dark flow.'

The stuff that's pulling this matter must be outside the observable universe, researchers conclude." (space.com)

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Tuesday, September 16, 2008

Dark matter 'bridge to nowhere' found in cosmic void 

"More than a dozen galaxies seem to be lined up along a bridge of dark matter inside a region of nearly empty space. This 'bridge to nowhere' could shed light on how small galaxies formed in the early universe.

Galaxies in the universe are arranged in a lacy structure that contains many holes, or voids, that are largely bereft of galaxies. But the voids are not completely empty; astronomers expect they are criss-crossed by filaments of dark matter.

Now, astronomers have found a total of 14 galaxies that appear to be part of a dark matter bridge at least 1.5 million light years long.

The string of galaxies spans just 0.5% of a 'mini-void' – a region of space containing mostly dim, dwarf galaxies kept small by their relative isolation from other matter. But the underlying dark matter bridge may be far longer than that." (New Scientist)


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