Leo Blitz

Oct. 19, 2007

New Radio Telescope

Astronomers have switched on the first 42 radio dishes of the Allen Telescope Array and are collecting data -- both for conventional radio astronomy, and the search for extraterrestrial life.

astronomy, seti, telescope

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Michael Pollan Talks Plants and Food

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Mystery Box

Oliver Sacks: Hallucinations

In his latest book, neurologist Oliver Sacks explores the strange world of hallucinations, and documents his own experiments with psychedelic drugs.

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