Passing Pluto: What We Know About The 'Dwarf Planet'
This morning NASA's New Horizons space craft is expected to pass fewer than 7,800 miles above Pluto's surface and send back pictures. Images have already revealed plenty of surprises about the mysterious "dwarf planet." Charissa Sedor, assistant manager of the Buhl Planetarium at the Carnegie Science Center, tells us what these latest finds reveal.
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