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Detecting life in the ultra-dry Atacama Desert

Few places are as hostile to life as Chile's Atacama Desert. It's the driest non-polar desert on Earth, and only the hardiest microbes survive there. Its rocky landscape has lain undisturbed for eons, exposed to extreme temperatures ...

Google redesigns search results on PCs (Update)

Web surfing through the Internet's main gateway now looks slightly different on personal computers, thanks to a few cosmetic changes to Google's search engine this week.

Facebook adds trending topics to site (Update)

In a move that echoes Twitter, Facebook is adding a feature to its service that lets users know the topics of discussion that are trending among the site's 1.2 billion users, whether it's the death of a world leader or the ...

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