SETI

SETI, which stands for "Search for Extra Terrestrial Intelligence", was a 20th century Earth effort to explore, understand and explain the origin, nature and prevalence of life - most notably alien intelligence - in the universe.

The SETI greeting was displayed on a plaque on the hull of such NASA probes as Voyager 6 and Pioneer 10. 

In 1996, a young researcher, Rain Robinson, detected the USS Voyager and transmitted the standard SETI greeting. 

External link

 * SETI Institute

SETI