Large Telescope observations of interstellar comet 2I/Borisov has revealed that it is "one of the most pristine ever observed ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

This video breaks down why K2-18b has suddenly become one of the most important planets in the search for life beyond Earth.

SETI researchers found no alien signals on interstellar object 3I/ATLAS, but the study refines future searches and expands ...

SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology ...

A new SETI study argues that turbulent space weather around distant stars can smear out ultra‑narrow alien radio signals, ...

"Eventually, our own Voyager spacecraft will be extraterrestrial artifacts in other stellar systems." ...

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an alien spaceship.

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

In July 2025, astronomers spotted something remarkable passing through our Solar System, an object that had not come from ...