Monday 29 September 2008

Scientists glimpse 'dark flow' lurking beyond the edge of the universe

Distant clusters of galaxies are all shifting inexorably towards the same spot in the sky, beyond the boundary of what we can see.
A survey of hundreds of moving galaxy clusters, each of which contains hundreds of millions of stars, shows that they are defying expectations by moving at roughly two million miles per hour towards a particular location that may lie beyond the horizon of our observable universe. The universe is approximately 14 billion years old and the "cosmological horizon" is defined by the distance from where the light emitted at the moment of the big bang reaches us today - roughly 14 billion light years. The spot is a patch of sky between the constellations of Centaurus and Vela and the strange finding flies in the face of the current theories of the universe which would predict such motions as decreasing at ever greater distances.
Uh-Oh, here we go agaiiiiiiiiiiiinnnnn

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