In the 21st century, the theories regarding the existence of aliens refuse to dial down. Now, the recently resurfaced NASA photo of Martian planet has gone viral on various social media ...

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 ...

The strangely shaped object - snapped by NASA's Opportunity rover - has resurfaced and reignited wild theories about little ...

Avi Loeb’s White House panel has asked the Pentagon for videos and files on unexplained aerial sightings ...

Scientists in a recent breakthrough have discovered vast hidden magma systems beneath the surface of Mars, marking an “unexpected discovery” leading the researchers closer to finding ...

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

Man of Tomorrow might introduce a Justice League member to the DCU. The Superman sequel arrives in theaters next year and will see the Man of Steel battle Brainiac. Which Justice League hero will ...

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

The designer behind Ultima Online and Star Wars Galaxies wants you to govern, exploit, protect, and transform your own planet ...

Stacker compiled a collection of 70 images that show how the '70s changed the world. See photos of the decade's defining ...