A supposed square structure spotted on Mars sparked speculation about alien archeological sites on the red planet. It's a fun ...

Scientists uncovered a "Lost City" deep underwater in the Atlantic Ocean that could prove the existence of extraterrestrial ...

And not just on our own planet. "And maybe Mars in the past." Unlike underwater volcanic vents called black smokers, which ...

What might it be like to live on Mars? Bjarke Ingels Group — the architects behind the designs for Two World Trade Center in Manhattan and the Hyperloop One — has an idea. The firm is ...

This is the Lost City. Discovered by scientists in 2000, more than 700 meters (2,300 feet) beneath the surface, the Lost City Hydrothermal Field is the longest-lived venting environment known in the ...