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

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

As we look back over the past 20 years, certain villains stand out for their ability to linger in our minds long after the ...

There have been many egregiously terrible sci-fi films released over the years, including the likes of Mac and Me, iBoy, and ...

Resolve to read more books in 2026—and start right here with io9’s first list of the year rounding up all the new sci-fi, ...