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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 ...

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 ...

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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.

If intelligent aliens are out there, why aren’t we hearing from them? Are they silently observing us like zoo animals, or staying quiet out of fear that they’d catch the attention of a bloodthirsty ...