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Separating Twins Preview
Follow the amazing story of Trishna and Krishna, girls born joined at the head.
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Secrets of the Sun Preview
Scientists are striving to better grasp our star and its destructive solar storms.
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Power Surge: Preview
Are we finally on the brink of a clean energy revolution? Airs April 20, 2011 on PBS
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Mystery of a Masterpiece Preview
Art experts investigate if a portrait sold in 1998 is actually a lost Leonardo painting.
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Making Stuff: Stronger Preview
Airs Wednesday, August 21, 2013 at 9:00 p.m. ET/PT. Check your local listings.