A surprising chemical difference between Pluto and Sedna, another dwarf planet in the distant Kuiper Belt, is helping scientists nail down their respective masses, a new study reports. "Kuiper Belt ...
LOS ANGELES -- Peering into the far reaches of the solar system, astronomers have spied a pink frozen world 7 1/2 billion miles from the sun. It's the second such object to be discovered in a region ...
Full Video- http://www.youtube.com/watch?v=WHNO079G1i8 Pluto, Eris, and the Dwarf Planets of the Outer Solar System Exploring Space Lecture webcast live on Tuesday ...
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