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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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 ...

The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, yet a growing group of researchers warns that such a moment might arrive not ...