New Dark Matter Map Shows Violent Life of Galaxies

Publication: National Geographic News   Date: January 10, 2008   View Article

In galaxy clusters, the rough-and-tumble outer suburbs are where most galactic change occurs, a team of astronomers announced today.

There, galaxies harass, strangle, and strip away at each other as they are pulled from the outskirts of a cluster to the inner core by the gravity of dark matter, according to the new research.

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