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 ...

Scientists are sharpening the methods used to search for alien artifacts inside our own solar system, drawing on recent peer-reviewed studies published in The Publications of the Astronomy Society of ...

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 ...