Next-door Cosmic Encounter: Neighboring Galaxies Collided 2-3 Billion Years Ago

Friday, September 4, 2009 - 18:27 in Astronomy & Space

An international team of astronomers has uncovered evidence of a nearby cosmic encounter. Their study indicates that the Andromeda and Triangulum galaxies, the two galaxies closest to our own, collided about two to three billion years ago.

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