If nonliving materials can produce rich, organized mixtures of organic molecules, then the traditional signs we use to ...

Some of the most tantalizing hints in the search for extraterrestrial intelligence have not been messy or chaotic, but eerily ...

Astronomers have spotted a lonely world roughly the size and mass of Saturn, drifting through the Milky Way without a star to ...

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The ...

Though this hunt came up empty, the fact that 3I/ATLAS is only the third known object found in the solar system after ...

It is unclear whether a [3I/ATLAS] would transmit radio signals … such signals would take tens of thousands of years to cross ...