Atom & Cosmos

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Pluto

THE OTHER RED PLANET Pluto’s ruddy surface comes into view in a close-up taken on July 3, 12.5 million kilometers from the dwarf planet.

SPLASH ZONE  A periodically plunging planet causes these spiral waves in the belt of debris surrounding the star Beta Pictoris, as seen in this computer simulation.

Pluto and Charon in orbit

Pluto and Charon show off two of their sides in pictures taken by the New Horizons spacecraft. Each of the dark spots on Pluto (orange, right) is roughly the size of Missouri.

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