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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 ...

Over a year ago, we received a signal from Mars—an encoded message from Europe’s Martian orbiter, picked up by three observatories on Earth. The contents of this simulated alien message, crafted by an ...

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 ...

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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 ...

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.