Atom & Cosmos

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Green Bank Telescope

BIG LISTENER  To eavesdrop on the universe, the Green Bank Telescope requires a quiet location with little interference from human-made radio signals.

pair of supermassive black holes

BOSOM BUDDIES  A pair of supermassive black holes might live in the heart of the galaxy Markarian 231, shown in this Hubble Space Telescope image. 

New Horizons will buzz a boulder in the Kuiper belt, seen in this artist’s illustration, on January 1, 2019.

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