All Things Considered for February 20, 2011 Hear the All Things Considered program for February 20, 2011

All Things Considered

Jeopardy contestants Ken Jennings (left), Brad Rutter and a computer named Watson. Carol Kaelson/AP hide caption

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Carol Kaelson/AP

The Dark Side of Watson

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Scientists from NASA's Kepler mission discovered 54 planets in so-called "habitable zones" in the Milky Way. The SETI Institute turned its telescopes toward those planets to listen. AP hide caption

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AP

Tuning In Space Noise For Sounds Of Life

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All Things Considered