Add Yahoo as a preferred source to see more of our stories on Google. Mundane wayward space snowball, or extraterrestrial visitor? Astronomers believe that our solar system's latest and only third ...

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 ...

There’s no denying the allure of alien artifacts. Science fiction is awash in the material remnants of extraterrestrial civilizations, which surface in everything from the classic books of Arthur C.

Astronomers are adopting new strategies in the search for extraterrestrial intelligence. A study in Monthly Notices of the Royal Astronomical Society suggests using Earth’s shadow to detect alien ...