Caltech scientists published a study using NASA Curiosity rover imagery showing the past existence of warm water on Mars.
The car-sized Curiosity rover has spotted evidence of once quite hospitable environs on Mars.
NASA's Opportunity rover landed on Mars! This was the second of NASA's twin Mars Exploration Rovers to land on the red planet ...
Images of Mars taken from orbit show thousands of mounds in a region sculpted by water billions of years ago. A robotic mission may investigate the area one day.
The area containing the clay-bearing mounds is geologically connected to Oxia Planum, which is where Rosalind Franklin will ...