A legendary signal from deep space, once dismissed by some as statistical noise, has just become even more mysterious.

The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, ...

Researchers in China have conducted the most thorough search yet for alien radio signals in the nearby TRAPPIST-1 system, which may harbor potentially Earth-like planets. When you purchase through ...

A NASA-backed study reveals that alien civilizations could detect human signals sent to spacecraft. Radio transmissions aimed at Mars rovers and orbiters aren't fully contained, creating a 'spillover' ...

Radio signals have been travelling through space since 1906, forming Earth’s radio bubble. Now 119 light years wide, it covers about 75 star systems, the signals fading into noise ...

Alien-hunting astronomers in China and the US say they discovered a mysterious radio signal from the direction of an Earthlike planet. The narrowband signal – picked up by the world’s largest radio ...

A RUSSIAN radio telescope sparked a frenzy earlier this week, with reports it had received a ‘signal’ from outer space. But alien hunters SETI now say it’s a case of mistaken identity. What was ...

Imagine the terror if a celestial visitor was not only on a collision course with Earth but also sending a mysterious radio signal. While the latest interstellar ...

Some of the world's leading experts have now revealed what noises life beyond Earth might really make - and they say Steven ...