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Science
Image: Chaiten volcano
AP

Eight most dangerous volcanoes

After 9,000 years of dormancy, the Chaiten volcano in southern Chile began a series of eruptions in May that served as a stark reminder that volcanoes can pose grave dangers.

Cosmic Log
Image: SN 1006 gaseous banner
NASA / ESA / STScI / JHU
Cosmic Log: Stars and stripes in space

NASA's Great Observatories present a red-white-and-blue view of cosmic stars and stripes, just in time for the Fourth of July.

Photos
NASA/ESA/CXC
Image: Members of an unknown Amazon Basin tribe
Reuters
Image: Stonehenge
National Geographic
Image: Nebula
USGS / NASA
Image: Limestone sequence
John "Doug" Powell
Image: A humanoid robot, designed to make human-like facial expressions in response to English and Japanese words.
AP
AFP - Getty Images
Interactives
Image: Second Life
NASA-MSFC
Image: researcher measures the photosynthetic rate of carbohydrate synthesis in some lab-grown plants
Don Hamerman/University of Illin
Image: Eternal Sonata from Namco Bandai
Namco Bandai
Image: Mega Man
Capcom
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Space

Gadgets

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Just how many 'brains' does one PC need?

Just how many "brains" does your personal computer need, anyway? Not that buying a PC was ever as easy as, say, buying a toaster or an electric toothbrush, but the companies that make the electronic brains, or microprocessors, for PCs today have managed to make it even more complicated.

Wireless

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Can’t telecommute? Watch this!

With gas prices soaring and seemingly no end in site, drivers are going to great pains to save at the pump. But it seems something obvious has been overlooked: skipping the commute and working from home. Fewer than 10 percent of Americans work from home even one day per week.

Games

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Texas teen is real-world 'Guitar Hero'

On May 17, 13-year-old Danny Johnson sat down in front of an Xbox 360 at The Guitar Hero 24 Hour Marathon in Dallas and completely shredded “Through the Fire and Flames.” For this feat of finger acrobatics, he earned a score of 890,971 points — and snagged the world record.

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