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False-color image of Pluto from New Horizons, July 24, 2015

What’s Pluto Been Dune? Making Young Sand Dunes

Sand dunes were surprising enough on Titan, but et tu, Pluto? and young, recent dunes? Scientists couldn't believe their eyes.

Ring Around the Dwarf Planet Says ‘I’m Young’

You can't declare something old just because your worldview requires it to be old.

Will Pluto Surprise Scientists?

First-time encounters have a long history of shocking planetary scientists with unexpected features. It's about time for Pluto.

What to Look for at Pluto

As New Horizons closes in on Pluto for its July 14 encounter, what questions should be asked?
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