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

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more natural source.

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.

It catches very low frequency radio waves made by lightning, solar storms and charged particles moving through Earth’s ...

A newly spotted interstellar visitor just got an unusually close listen from California scientists — in a search for signs of technology. The verdict was less science fiction than some might have ...

Research indicates airport radar systems may unintentionally broadcast Earth's presence to aliens up to 200 lightyears away, ...

Add Yahoo as a preferred source to see more of our stories on Google. Photo Credit: Seth Shostak / SETI Institute A newly spotted interstellar visitor just got an unusually close listen from ...

In July 2025, astronomers spotted something remarkable passing through our Solar System, an object that had not come from anywhere nearby. Called 3I/ATLAS, it was travelling so fast and on such an ...