A recently discovered "super Earth" located around 25 light-years from our planet is not as massive as previously thought, ...

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...

SETI may have missed alien signals for 60 years because stellar plasma smears transmissions into noise, a new Astrophysical ...

Billions of years ago, while the solar system was still young, a massive object may have drifted into it. It's not a spaceship, but it is an alien visitor in its own right—a colossal interstellar body ...

Searching for life in alien oceans may be more difficult than scientists previously thought, even when we can sample these extraterrestrial waters directly. A new study focusing on Enceladus, a moon ...

Through the looking glass: The fact that we have yet to discover alien life continues to baffle scientists. While there are many possible explanations, a new theory offers a rather grim perspective: ...

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer ...