New Proof Unknown “Structure” Tug at Our Universe

Publication: National Geographic News   Date: March 22, 2010   View Article

“Dark flow” is no fluke, suggests a new study that strengthens the case for unknown, unseen “structures” lurking on the outskirts of creation.

In 2008 scientists reported the discovery of hundreds of galaxy clusters streaming in the same direction at more than 2.2 million miles (3.6 million kilometers) an hour.

This mysterious motion can’t be explained by current models for distribution of mass in the universe. So the researchers made the controversial suggestion that the clusters are being tugged on by the gravity of matter outside the known universe.

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