Saturn's moon Enceladus could harbour alien life in oceans deep beneath its frozen surface, according to a new study.

Scientists believe life on alien worlds may be constrained by the same factors as on our planet.

Aliens lived on a certain planet.They had built a civilization far more advanced than Earth's.They had overcome disease, aging, and even death. As a result, the planet's surface became too small, so t ...

An international team of researchers has achieved a significant breakthrough in the search for life in space. For the first time, scientists have successfully attributed a radio signal to a planet ...

What are the chances of finding extraterrestrial life in our solar system? Professor Frank Postberg, planetary scientist at ...

In the search for extraterrestrial life, it makes sense to first look for rocky planets with an atmosphere, like Earth.

In 1986, ALF crash-landed on Earth and made his home in our hearts.

But the universe also hosts worlds that break away from this familiar image. Some planets drift alone through space without a ...

The picture-perfect launch of NASA’s Roman Space Telescope could push forward the space agency’s ultimate search for life across the Milky Way, says a leading astronomer.

In "Project Hail Mary," how long is the alien Rocky in the Tau Ceti system before Ryland Grace meets him? The answer is startling and a little sad.

Production has been underway on the second season of Noah Hawley's Alien: Earth for a couple of months, and FX has now released a brief behind-the-scenes ...