Since 2002, Planetary Radio has visited with a scientist, engineer, project manager, advocate, or writer who provides a unique perspective on the quest for knowledge about our solar system and beyond. The full show archive is available for free.

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All-Sky Optical Search for Extraterrestrial Intelligence

A burst of laser light could let humanity know it is not alone in the universe. Harvard’s Paul Horowitz and Curtis Mead will give us an update on the technological wonder of Optical SETI that watches the entire sky for billionth of a second pulses from the stars.

Looking for E.T.'s Laser Beam: An Optical SETI Update

An update on the Optical Search for Extraterrestrial Intelligence from Harvard's Paul Horowitz.

A New Generation Looking for ET

A New Generation Looking for ET