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

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

Some of the most celebrated classics of sci-fi cinema were released in 1950s, pushing movie language forward and setting ...

Searching for alien languages sheds light on how much human languages have in common—with each other and even with animal ...

The ExoLife Finder (ELF) looks like no telescope ever built. A spectacular crown of 15 five-meter mirrors perches atop a ...

Bob Lazar's UFO claims from the 1980s find new support in recent military video evidence. Bob Lazar’s descriptions of UFO ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's impression of a theoretical planet orbiting a redder star, which could cause microbes and plants on the planet's ...

NASA scientists managed to grow plants in real lunar soil for the first time, and the results were surprising. Seeds planted in Moon dirt actually sprouted, proving that life can begin even in an ...

What would alien life from another planet be like? But we rarely ask the opposite: What would they think of us? It’s a question that can produce some, well, uncomfortable answers if you happen to be ...

Are we alone? From Trump’s push to release UFO files to new NASA missions, interest in alien life is back in the spotlight.

Scientists say caves on Mars and icy moons may host microbial life and serve as future habitats for astronauts to be sent to ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Over the past decade, scientists have come up with a variety of frameworks to guide ...