New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth could thus be overlooking prime evidence of alien intelligence.

K2-18b is one of the most promising worlds for the search for extraterrestrial life, so astronomers conducted an unusually ...

The odds of there being another intelligent life form in the Milky Way are pretty good given the billions of stars. But we ...

China reported this week that the most powerful ground-based radio telescope may have identified technological traces of an alien civilization in an electromagnetic signal from space. The Five-hundred ...

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A new SETI study argues that turbulent space weather around distant stars can smear out ultra‑narrow alien radio signals, meaning technosignatures may already have reached Earth.

Hunting for alien civilizations isn't a matter of just waiting around for them to show up; it's the business of combing through enormous volumes of data to look for peculiar signals. When you purchase ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Scientists have searched the skies for alien radio signals for more than 60 years, but all ...

If you’re an alien listening to Earth’s radio signals, you may have noticed some changes. Most of the radio waves our tech-obsessed planet is beaming into space now come from the mobile towers that ...

For decades, humanity has scoured the cosmos for any signs that we aren't alone in the universe. NASA spacecraft like the twin Voyager probes – launched in the 1970s bearing the iconic Golden Record – ...