Science fiction suggests that life on other planets, if it exists, is likely far more advanced than life on Earth. A recent ...

We imagine advanced alien civilizations building gigantic spaceships, Dyson spheres and empires spanning entire galaxies. But ...

Researchers propose that tiny technological remnants from extinct alien civilizations could have landed on the moon after ...

Most of our experience with the Search for Extraterrestrial Intelligence (SETI) has focused on capturing radio signals that ...

We may be missing out on ultra-narrow radio signals sent by technologically advanced civilizations, a new study claims. The study shows that a star’s violent eruptions near an alien planet may distort ...

(Esben_H/iStock/Getty Images Plus) The Fermi paradox asks: If there are other civilizations in the Universe besides ours, why haven't we yet made contact? Researchers who study this paradox – also ...

Scientists believe that tiny fragments of technology from potential extraterrestrials who disappeared long ago may have ...

The age of our universe and the commonality of Earth-like planets indicates the possibility of alien civilizations either ...

Add Yahoo as a preferred source to see more of our stories on Google. The great physicist Enrico Fermi first posed the challenging question over half a century ago, wondering why we appear to be alone ...

For decades, SETI researchers have focused on finding narrow-band radio signals that might stand out from the natural universe. But what if an advanced civilization that wanted to communicate would ...