If alien life exists, its absence from our instruments may have several very different explanations. The longer the silence continues, the more interesting the mystery becomes.

As published in The Astrophysical Journal Letters, theoretical astrophysicists Konstantin Batygin and Jim Fuller of Caltech, ...

A University of Vienna study finds that an ancient burst of genome reorganization created 3D DNA interactions, or regulatory ...

Scientists have spent decades searching for signs of life beyond Earth without confirming a single extraterrestrial organism or technological civilization. That absence creates a fascinating problem: ...

Astronomers have detected radio signals directly from exoplanet Beta Pictoris b for the first time. The discovery reveals a ...

The estimated lifespan of the outer solar system has been downgraded from 100 billion years to just a few billion years, ...

Astronomers have detected the first direct radio emissions from an exoplanet, Beta Pictoris b. The natural auroral signal ...

I/ATLAS interstellar comet, first photographed from Mars orbit in October 2025, carries water ice with deuterium levels more ...

Some people treat the idea of aliens as nonsense, but scientists actually believe that the notion we're alone in the entire ...

Enceladus is covered in ice, but that layer might hide a subsurface ocean. Researchers have long wondered if the salty body ...

Scientists believe that greater plant growth provides more energy and ecological space for animals, linking the conditions ...

This summer, exoplanet science—the study of planets orbiting stars beyond our sun—took a big step forward. Reports of helium ...