What if aliens in the universe send a message to Earth, and we can’t understand what they’re saying? Communicating with another species is likely to be tricky, given how difficult it already is for ...

One of the most famous messages ever beamed to space was a string of 1,679 bits sent by the Arecibo radio telescope in 1974. But if E.T. sent us such a string, how could we Earthlings even begin to ...

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 ...

What would happen if aliens contacted us? It’s a longstanding question that now has at least a partial answer, after a transmission designed to mimic correspondence from an extraterrestrial ...