Extraterrestrial and artificial life have long captivated the human mind. Knowing only the building blocks of our own ...

Alien life might look unlike anything we've ever seen on Earth ... NASA defines life as a "self-sustaining chemical reaction ...

Astrobiologists are working to discover universal rules that govern the emergence of complex physical and biological systems ...

A new paper suggests intelligent extraterrestrials could be eating stars to fuel their sun-steering civilizations.

NASA says the Perseverance rover finished its climb up the rim of the Jezero Crater, getting ready to do science in a whole new region ...

Mysterious alien-like statues unearthed from ancient Stone Age settlement - Ubaid culture figurines bear striking ...

NASA defines life as a "self-sustaining chemical reaction capable of Darwinian evolution." That means organisms with a ... liquid carbon dioxide and even liquid sulfur. Alien life might not be based ...

Alien Buddy Bench, featuring a friendly alien, is the talk of residents as part of Stratford Street Sculpture's new Share A Chair art exhibition outside Town Hall on Main Street in Stratford, Conn. on ...

By looking at life’s basic rules, they aimed to uncover whether certain forms of life are impossible—even on alien worlds or ...

One such scientist is Professor Lisa Kaltenegger, an astronomer who quite literally wrote the book on Alien Earths. That was ...