A popular concept in science fiction is uncovering ancient alien artifacts, but if we encounter these extraterrestrial relics in the future, how should we investigate them and what might they reveal?

If alien civilizations rise and fall, they may leave behind artifacts long after they are gone. From abandoned megastructures to quiet machines orbiting dead stars, these relics could tell stories no ...

January brought a wide range of thoughtful science conversations featuring researchers from the SETI Institute, spanning everything from hands-on planetary defense with citizen scientists to careful ...

For decades, astronomers have searched for signs of extraterrestrial intelligence using radio telescopes and optical instruments, scanning the skies for artificial signals. Now, researchers are taking ...

First contact with alien civilizations won’t be with the beings themselves, but with their technology. By searching for these extraterrestrial artifacts, we embark on a journey through our solar ...