Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

In China’s largest province, Qinghai, there’s something a little out of place. A set of modern-looking, metallic pipes protrudes from a mountainside, accompanied by a monument dedicated to the ...

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 ...