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July 28, 2009 | July 21, 2009 | July 14, 2009 | July 7, 2009 | June 30, 2009
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July 23, 2008

Leeches

Leeches - July 2008
A century after falling out of favor among doctors, medicinal leeches are back in hospitals, sucking away on patients' wounds.

The Search for ET

The Search for ET - July 2008
Astronomers have their radio telescopes tuned to receive signals from alien worlds. But is anybody out there?

Stem Cells Breakthrough

Stem Cells Breakthrough - July 2008
Three separate teams overcome a biomedical hurdle—creating stem cells without the use of human embryos.

Profile: Edith Widder

Profile: Edith Widder - July 2008
Meet a marine biologist and explorer who has engineered new ways to spy on deep-sea creatures.

July 28, 2009 | July 21, 2009 | July 14, 2009 | July 7, 2009 | June 30, 2009
July 30, 2008 | July 23, 2008 | July 16, 2008 | July 9, 2008 | July 2, 2008
June 25, 2008 | July 24, 2007 | July 10, 2007 | Jan. 2007
Nov. 2006 | Oct. 2006 | Jan. 2006
Oct. 2005 | July 2005 | Apr. 2005 | Jan. 2005 < previous