VIDEO | by WSJLive

New Discoveries Open New Chapter for Cosmos

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VIDEO DESCRIPTION:
Two new discoveries, a dwarf planet and rings around a distant asteroid, have scientists rethink their theories about the ...
far rim of our solar system. WSJ's Robert Lee Hotz reports. (Photo: Scott S. Sheppard: Carnegie Institution for Science)
Posted: 03/27/2014 | Views: 178,080 | Duration: 01:28
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