Humans have wondered for centuries whether we are alone in the universe — and a new study suggests that if alien ...

New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder to detect.

A recent SETI Institute study suggests that space weather could blur and weaken extraterrestrial radio signals long before they reach us.

The search for extraterrestrial intelligence (SETI) has yet to detect alien technosignatures like radio waves, but the cosmos is vast, and there are plenty of places left to look. New research ...

If it were a phone call, we might call it a butt dial: A strong radio signal that set off questions about whether it emanated from an advanced alien race earlier this week is now believed to have come ...

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Researchers may have finally traced 1977’s famous extraterrestrial anomaly back toward massive, naturally occurring hydrogen ...

The first unmistakable signal from another intelligence may not be a cheerful greeting. A growing group of researchers is arguing that our inaugural contact is more likely to be a distress call, the ...

A mysterious radio signal has been traced to a galaxy far, far away. And, it's causing a stir among astronomers -- although nobody is sure what it is. Research published this week in the journal ...

Some readers might find this article best viewed with eerie sci-fi music playing in the background, because this article is about the possibility of alien life. On May 15, 2015, Gizmodo reported, ...

Discover the mysterious ‘Wow!’ signal, a 1977 transmission that sparked decades of speculation about extraterrestrial life.