SETI isn’t “going to meet aliens.” It’s listening for artificial radio signals and other measurable clues that point to technology. Those clues are called technosignatures—and the darkest category is ...

In 2017, an interstellar object zipped through our solar system and instantly triggered the most predictable headline: aliens. But the real mystery wasn’t the shape—it was the motion. It accelerated ...

We may not have found any definitive proof of extraterrestrial life just yet, despite plenty of hope among scientists. But if we were to ever come to an answer in the form of alien biology or ...

It's that kind of half-understanding that creates truly great alien technology. There must be an “uncanny valley” of alien tech that creates that kind of chill-down-the-spine reaction. I’m lifting the ...

Former U.S. President Barack Obama said he did not see evidence that aliens "have made contact with us," after sending social media abuzz by saying aliens were real on a podcast over the ...