A century after falling out of favor among doctors, medicinal leeches are back in hospitals, sucking away on patients' wounds.
2. The Search for ET
Astronomers have their radio telescopes tuned to receive signals from alien worlds. But is anybody out there?
3. Stem Cells Breakthrough
Three separate teams overcome a biomedical hurdle—creating stem cells without the use of human embryos.
4. Profile: Edith Widder
Meet a marine biologist and explorer who has engineered new ways to spy on deep-sea creatures.
more info: http://www.pbs.org/wgbh/nova/sciencenow/
Source: OTA High Definition 1080i
Video Encoding: xvid.1280x720.4121kbps
Audio Encoding: ac3.384kbps-5.1chan
File Size: 1.65GB
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