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Kathleen Dunn
from Tuesday, November 29, 2011 at 9:00 AM
The world's biggest extraterrestrial explorer, NASA's Curiosity rover, is on its way to Mars in search of evidence the planet might once have been home to microscopic life. After nine, Kathleen Dunn and her guest discuss Curiosity's 345-million-mile journey to the Red Planet. Guest: Bob Berman, "Strange Universe" columnist, Astronomy magazine. Author, "The Sun's Heartbeat: And Other Stories From the Life of the Star That Powers Our Planet"

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