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Days Before Flyby, Ultima Thule Still Mysterious

Clip: Season 46 Episode 1 | 1m 45s

NASA's New Horizons spacecraft is about to visit the most distant object ever explored by humans.

Aired: 01/02/19

Rating: NR

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National corporate funding for NOVA is provided by Draper. Major funding for NOVA is provided by the David H. Koch Fund for Science, the Corporation for Public Broadcasting and PBS viewers.

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