(cokada/iStock/Getty Images) Alien megastructures built to harvest stellar energy or alter the orbits of stars may be ...

Searching for alien languages sheds light on how much human languages have in common—with each other and even with animal ...

Sci-fi fans can rejoice as the Alien franchise's entire collection, including classics and director's cuts, drops on a new streamer on April 1.

An international research team led by the University of Vienna has produced, for the first time, high-resolution global maps of invasion risk for thousands of alien plant species under current ...

Humans have wondered for centuries whether we are alone in the universe — and a new study suggests that if alien ...

These findings suggest that the absence of past detections does not mean discovery is imminent. If extraterrestrial ...

Scientists have uncovered a surprising way to study the harsh space weather around young M dwarf stars. Mysterious dips in starlight turned out to be massive rings of plasma swirling in the stars’ ...

NASA officials have previously spoken of the possibility of extraterrestrial life amid scientific uncertainty while ...

Researchers recently analyzed data available on the National UFO Reporting Center’s website. Here's what they found.

Add Yahoo as a preferred source to see more of our stories on Google. The search for life beyond Earth requires expanding the very definition of what life can be. Some exoplanets, especially those ...

Trump has ordered a UFO data release. But if aliens exist, what would they think of us? - For generations, human beings have ...

The study analyzed over 150,000 UFO reports from the National UFO Reporting Center since 1974. Recent Congressional hearings and political commentary have renewed mainstream interest in UFOs, now ...