The first unmistakable sign of extraterrestrial technology may not arrive as a calm greeting. It may look more like a flare.

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

If advanced aliens lived on a planet within a few hundred to a thousand light years away from Earth, then vast numbers of their signals must already have crossed Earth without being noticed, a new ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Turbulent star environments may broaden alien radio signals, making them harder for SETI to detect. (CREDIT: Shutterstock) Radio ...

The search for alien life no longer feels like pure speculation. This video walks through the strongest signs ever put forward, from the Wow Signal to Martian fossil claims and other near-breakthrough ...

Advanced aliens could be chatting with each other using light flashes in plain sight, similar to how fireflies communicate, according to a new study that could lead to new approaches in finding ...

Scientists reveal one key way we might have missed signals from aliens - ‘Smearing’ of signals could mean that there are messages we are missing, researchers say ...

We may have been missing signals from intelligent aliens because of solar wind. Researchers from the Search for Extraterrestrial Intelligence (SETI) Institute say this means we have been watching for ...

For over two decades, millions of people volunteered the computational capacity of their computers to help UC Berkeley scientists in their search for extraterrestrial intelligence (SETI). The goal of ...