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

There is a silence in the night sky that has bothered me for as long as I can remember. ” That observation, attributed to ...

Beneath 70 % of Earth’s surface lies a realm where sonar picks up strange shapes, sunken cities and possibly alien structures.

Shaped by a different biology or culture, other intelligent civilisations – if they’re out there – might understand the ...

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

Chalk up another victory for “Conan the Bacterium”—a rugged germ that fresh research suggests could conquer the solar system.

It is often suggested that this may have already happened: alien technosignatures may have reached Earth during the past six decades but have gone unnoticed. If that is true, it suggests that more ...

Compared to previous theories, the current research emphasizes the complexity of the biological and chemical processes that brought about life.

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 ...

What: SETI Institute Artists-in-Residence present Exoplanetary Poetry, an art-science collaboration that trains artificial intelligence on exoplanet atmospheric chemi ...

The first bubble of hot gas seen around another star has been spotted around the "Moth," just 117 light-years away.

Just as space aliens might benefit from a society rooted in Jewish ideals, so too might humans benefit from the encounter ...