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Whether you clicked on a misleading banner ad, opened a file sent by a Nigerian prince or simply downloaded the wrong porn, everyone’s dealt with a computer virus at some point. While bad programming or virus checking software contains most outbreaks, some malware has managed to reach pandemic levels. With the help of Golden Richard III, a professor of computer science at the University of New Orleans and an expert on computer viruses, Popsci.com takes a look at ten viruses, worms and Trojans that reached levels of digital plague.

For a gallery of Hubble's most incredible images, click "View Photos" at left The terrific thing about NASA chief Michael Griffin's decision to launch a Hubble servicing missionthe telescope's fifth since 1990isn't simply that the spacecraft will be able to limp along for another four years. After astronauts visit Hubble on this latest mission (set to launch no earlier than May 2008), the telescope will be more powerful than it has ever been, thanks to some incredible new instruments being tested now.

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War spurs innovation, and U.S. soldiers are seeing a lot of it. How well is the new equipment performing in Iraq? href="http://www.popsci.com/popsci/slideshow/2006/c87d8069b864b010vgnvcm1000004eecbccdrcrd.html"
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