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Binary Black Holes Discovered

A pair of galaxies known together as NGC 6240 are colliding with each other 400 million light-years away in the direction of Ophiucus. Researchers have just announced that each of these galaxies contains an active black hole--this is the first binary black hole identified. The two objects are spiraling in towards each other as the galaxies interact, and will eventually collide.

Thanks, Mom!

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