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Rise of the Robo Scientists

Machines can devise a hypothesis, carry out experiments to test it, and assess results--without human intervention

By Ross D. King

Contact: The Day After

If we are ever going to pick up a signal from E.T., it is going to happen soon, astronomers say. And we already have a good idea how events will play out

By Tim Folger

Flu Factories

The next pandemic virus may be circulating on U.S. pig farms, but health officials are struggling to see past the front gate

By Helen Branswell

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