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Hunt for Alien Earths, Art Authentication, Maydianne...

Clip: Season 4 Episode 2 | 52m 10s  | Video has closed captioning.

Season 4: Episode 2

Aired: 07/07/09

Rating: TV-PG

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Funding for NOVA is provided by David H. Koch, the Corporation for Public Broadcasting and PBS viewers. Additional funding is provided by George D. Smith.

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