Alien-seeking researchers have designed a new, simple code for sending messages into space. To a reasonably clever alien with math skills and a bit of astronomical training, the messages should be ...

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 ...

The decision to actively send messages to aliens is controversial. There are two main avenues of thinking—the first, known as SETI (Search for Extraterrestrial Intelligence) is that we should actively ...

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 ...

Attempts to communicate with aliens have gotten a lot more technologically advanced than the famous Carl Sagan Pioneer plaques that feature drawings of a naked man and woman on the Pioneer spaceships.