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  • Nova ScienceNow Leeches/The Search for ET/Stem Cells Breakthrough/Profile: Edith Widder (Season 3, Episode 5)
  • TV Episode | Documentary

Nova ScienceNow

Leeches/The Search for ET/Stem Cells Breakthrough/Profile: Edith Widder (Season 3, Episode 5)
TV Episode | Documentary

Leeches - A century after falling out of favor, medicinal leeches are back in hospitals, sucking away on patients' wounds. SETI - Astronomers have their radio telescopes tuned to receive signals from alien worlds. But is anybody out there?...See moreLeeches - A century after falling out of favor, medicinal leeches are back in hospitals, sucking away on patients' wounds. SETI - Astronomers have their radio telescopes tuned to receive signals from alien worlds. But is anybody out there? Stem Cells Breakthrough - Three separate teams overcome a biomedical hurdle-creating stem cells without the use of human embryos. Profile: Edith Widder - Meet a marine biologist and explorer who has engineered new ways to spy on deep-sea creatures. See less
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Updated Jul 23, 2008

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Jul 23, 2008 (United States)
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