Mars once had sprawling river systems that rivaled major watersheds on Earth, and scientists have now identified the biggest ones for the first time. Researchers mapped 16 massive drainage basins ...
What if we aren’t alone in the universe? People have been speculating about the possibility of alien life forms at least since Lucian’s A True Story, some 1,800 years ago. In modern times, much of ...
A thin atmosphere and other factors have left Mars' soil in rough shape, but the quest continues for signs of life, even if it's extinct. NASA/JPL-Caltech/MSSS What if we aren’t alone in the universe?