From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

Is alien life really out there? For decades, humanity has looked at the night sky and asked the same question. Now, according ...

Extraterrestrial visitors are not only already here – they are landing in a top secret “alien airport” hidden away in the ...

Scientists now believe life may be found on the notoriously inhospitable planet of Venus – but they believe it will have come ...

The long-running series in which readers answer other readers’ questions comes up with an epic extraterrestrial playlist for Earth’s first contact from beyond the stars ...

A Stanford scientist's model suggests many small rocky planets can't sustain atmospheres, potentially explaining the scarcity ...

Mercury is due to join Venus and Jupiter in the night sky for an uncommon celestial event commonly known as a planet parade. Here's how to catch it.

Hayley Atwell is no stranger to comic book adaptations. While fans are gearing up to see her return to the MCU in Avengers: ...

Ray Gunn, the animated sci-fi detective thriller from director Brad Bird, has officially set a release day on one of the ...

Somewhere in the Mojave Desert, a gleaming white dome sits in the middle of nowhere, and the story behind it is stranger than ...