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Search for Extraterrestrial Intelligence

Before we Develop Self-Replicating Machines to Explore the Universe, we Should Figure out how to Turn Them off Again

In 1948/49, famed computer scientist, engineer, and physicist John von Neumann introduced the world to his revolutionary idea for...

Snooping on Alien Messages Passing Through the Solar System

Researchers at Penn State University have studied a new technique that could use a star’s ability to focus and...

There Could Be Four Hostile Civilizations in the Milky Way

In 1977, the Big Ear Radio Telescope at Ohio State University picked up a strong narrowband signal from space....

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