Looking for molecular evidence of life on other worlds is tricky, but a test based on the reactivity of carbon compounds ...

A new study by researchers at the SETI Institute suggests stellar “space weather” could make radio signals from extraterrestrial intelligence harder to detect. Stellar activity and plasma ...

A new study by researchers at the SETI Institute suggests stellar "space weather" could make radio signals from ...

E.T. could be phoning home — but we’re not hearing the call. A new study published in The Astrophysical Journal argues that “space weather” could be distorting incoming transmissions from ...

For decades, humanity has been looking for answers to unravel the mystery surrounding aliens’ existence, but they have failed ...

A study by alien searchers at the SETI Institute (Search for Extraterrestrial Intelligence) could explain why humanity has ...

The Fermi Paradox asks a simple but unsettling question: if the universe is so vast, why haven’t we found evidence of alien civilizations? Scientists have proposed many explanations, but some of the ...

Beyond that, in the decades to come, we might be able to see the colours of an exoplanet’s surface, and determine if plant life might be present there. And then we can search for changes in a planet’s ...

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

Assuming intelligent aliens know how to harvest energy from stars, would humanity be able to spot these high-level structures?

If you examine our solar system’s giant planets, you’ll notice right away that they’ve all got moons—a lot of moons. While ...

Our search for extraterrestrial life has turned up empty, perhaps because technologically advanced civilizations are doomed ...