In Hollywood, we've received messages from extraterrestrials many times. In Contact, a message from the stars started out as a mathematical sequence of prime numbers. In Arrival, a linguist and a ...

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 ...

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 ...