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SETI

At the core of our explorations is the quest to know if life exists beyond Earth. The Planetary Society is a leader in the search for life on other worlds, whether intelligent or microbial. Our active projects: SETI Optical Telescope - Looking for laser signals beamed across the vastness of space. SETI Radio Searches - Huge radio dishes sift through nature's random noise for beacons from other civilizations.

SETI Projects

Project Updates

Update from the Ozma@50 Workshop

Frank Drake used the 85' radio telescope at Green Bank to conduct the first modern Search for Extraterrestrial Intelligence in 1960. Using a very simple receiver and no computers, he listened to each of two sunlike stars for 100 seconds. Call that unit 1 Ozma.

More from the Ozma@50 Workshop

Today's sessions at the Ozma@50 conference stretched the mind as these multidisciplinary gatherings usually do.

Report from SETI workshop marking 50 years since Project Ozma

Jon Lomberg repots from NRAO--the National Radio Astronomy Observatory-- in Greenbank, West Virginia on a SETI workshop marking the 50th anniversary of Project Ozma.

New Pulsar Discovery Shows Power of Citizen Scientists and Planetary Society Members

Planetary Society members have reason to celebrate today, with the on-line publication in Science of the discovery of a new pulsar by three citizen-scientists working with Einstein@home, a descendant of the SETI@home project.

Optical SETI's Growing Capabilities

Often, the phrase “next steps” has been known to describe things that don't actually happen. But for The Planetary Society's All-sky Optical SETI, it's different. Here's what's happened in the last year.

Astropulse: A Fresh Look at the Skies in Search of E.T.

If you were a member of an alien civilization trying to communicate across the immeasurable distances of space, how would you go about it?

SERENDIP Takes a Great Leap Forward

Just when SETI@home is celebrating its 10th anniversary, its older brother, Project SERENDIP, is getting a general makeover.

Quake Catcher Network: SETI@home Spinoff Tracks Earth-Shakers

One of the youngest off-springs of SETI@home has been getting a great deal of attention recently. Known as the Quake-Catcher Network (QCN), this distributed computing project makes use of thousands of volunteers' computers to locate and track earthquakes.

From SETI@home to Hominid Fossils: Citizen Cyberscience Reshapes Research Landscape

In the beginning was SETI@home, the first large-scale volunteer computing project, launched in 1999 with seed money from The Planetary Society. Within months the project had millions of volunteers around the world joining to form the most powerful computer network ever assembled.

Planetary System Detected Around SETI@home Target Star

A fully formed planetary system, with five different planets of varying sizes and orbits has been found, orbiting a star more than 40 light years away. Significantly, it is the very same star, 55 Cancri, that was one of the chief targets of the SETI@home reobservations at Arecibo in March 2003.

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