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Add Yahoo as a preferred source to see more of our stories on Google. When 12 alien spacecraft arrive at points around the globe, a collection of scientists, language experts, and military personnel ...

A simulated “alien” signal sent by a Nasa orbiter circling Mars has finally been cracked after months by a father-daughter duo, revealing the cosmic coded message. Nasa collaborated with SETI ...

On a hot November day in the tropical forest of Arecibo, Puerto Rico, amongst the croaking of coquís, the message went out. Warbling audio crackled over loudspeakers—the audible result of the work of ...

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If you were an alien from TRAPPIST-1, a star some 40 light-years away from Earth, searching for signs of intelligent life, you might spot an odd burst of infrared light coming from our solar system.

A Kentucky city has drummed up a unique way to boost tourism in the Blue Grass state — by blasting an invitation to aliens possibly living in a star system 40 lightyears away. Scientists in Lexington ...

The first unmistakable signal from another intelligence may not be a cheerful greeting. A growing group of researchers is arguing that our inaugural contact is more likely to be a distress call, the ...