If alien civilizations rise and fall, they may leave behind artifacts long after they are gone. From abandoned megastructures ...

Martian Moon Deimos Might Have Reshaped Itself and Its Orbit: Dr. Matija Ćuk, SETI Institute research scientist, and collaborators propose that Mars’s smaller moon may have undergone repeated ...

Scientists are sharpening the methods used to search for alien artifacts inside our own solar system, drawing on recent ...

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 ...