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

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

Ever since physicist Freeman Dyson first proposed the concept in 1960, the "Dyson sphere" has been the holy grail of ...

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

There’s something deeply unsettling about places where time simply stopped, like someone hit pause on an entire operation and never came back. The Northern State Old Farm Area near Sedro-Woolley is ...

In Amiri’s calculations, Dyson spheres around white dwarfs tend to produce cooler, fainter thermal emission that peaks in the near- to mid-infrared, while M-dwarf cases can radiate more strongly but ...

The playground arms race in Texas just got serious, and Joya Playground in Farmers Branch is basically the nuclear option ...

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

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

The findings suggest that if alien technologies exist, they are probably rare, distant, or long-lasting rather than frequent and nearby. Instead of expecting an obvious signal to appear soon, ...

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 ...