The president in February directed the Department of Defense to begin reviewing government files related to extraterrestrial ...

Reverse-engineering the billion-year-old enzyme nitrogenase clued researchers into how life originally formed on Earth — and ...

Donald Trump announced his administration would begin identifying and releasing UFO-related information earlier this year.

"Masters of the Universe" has re-emerged from the shadows of our childhoods, updated and resurfaced for today. Here's ...

New research suggests that the origins of life may be tied not only to deep-sea hydrothermal vents but also to environments ...

NASA’s Curiosity Mars rover has spent more than 13 years exploring the 3.5-billion-year-old Gale crater, slowly climbing a ...

NASA's Curiosity rover has found a diverse mix of organic molecules on Mars, including chemicals considered building blocks ...

Aristotle believed the planets revolved around Earth and God could not have created other worlds. Today, scientists scour the ...

Ancient Greeks believed in alien life, as well as in gods, souls, and beings that inhabited the Moon, stars, and Heavens.

"This experiment's never been run before on another world," said Amy Williams, an astrobiologist working on the Curiosity ...

Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity ...

Elaborate life could be much older on Earth than previously thought. A team of researchers has uncovered a fossil site in ...