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NOVA scienceNOW - Season 3 Episode 5 Leeches; SETI; Stem Cells; Edith Widder

Trailer
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? 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.

First Air Date: Jan 25, 2005

Last Air date: Nov 14, 2012

Season: 6 Season

Episode: 40 Episode

Runtime: 55 minutes

IMDb: 8.00/10 by 6.00 users

Popularity: 4.922

Language: English

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