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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One Planet, Two Stars, With Laurance Doyle

Multidisciplinary scientist Laurance Doyle led the team that has announced discovery of the first extrasolar planet circling two stars. He also talks about his plan to analyze communication by and among other species.

An Optical SETI Update From Paul Horowitz

An Optical SETI Update From Paul Horowitz

LIFE Heads for Space Aboard Shuttle Endeavour

LIFE Heads for Space Aboard Shuttle Endeavour

Life's Building Blocks Found in an "Impossible" Meteorite

Life's Building Blocks Found in an Impossible

Rafael Navarro-Gonzalez and Chris McKay Say the Vikings Probably DID Discover Organics on Mars

Rafael Navarro-Gonzalez and Chris McKay Say the Vikings Probably DID Discover Organics on Mars

Arsenic and Odd Life

Arsenic and Odd Life

Gregory and James Benford on Benford Beacons for SETI

Gregory and James Benford on Benford Beacons for SETI

Special Coverage of SETIcon

Special Coverage of SETIcon

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.

Paul Davies, Author of "The Eerie Silence"

Paul Davies, Author of

The Meaning of LIFE

The Meaning of LIFE

Looking for ET's Flashlight: Optical SETI

Looking for ET's Flashlight: Optical SETI

Where to Look for Life on Mars

Where to Look for Life on Mars

Astropulse: A New Way for ET to Phone Home

Astropulse: A New Way for ET to Phone Home

A New Generation Looking for ET

A New Generation Looking for ET

Going South to Look for ET

Going South to Look for ET

Spaceward Bound: Chris McKay Leads Scientists and Teachers in the Mojave Desert

Spaceward Bound: Chris McKay Leads Scientists and Teachers in the Mojave Desert

John Rummel: Protecting the Planets from Earth Invaders

John Rummel: Protecting the Planets from Earth Invaders

Bob Pappalardo and the Mysteries of Europa

Bob Pappalardo and the Mysteries of Europa

Looking for Life with Chris McKay

Planetary scientist Chris McKay talks about where and how we should look for life in the universe, including Europa and Mars.

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