“NASA’s Curiosity, a 2,000-pound super-rover, has found proof that water was on Mars, ranging from ankle to waist deep. This is based on images showing what looks like an ancient gravel stream bed, with Curiosity using one contaminated drill bit.
The evidence of water on Mars is not new evidence, as NASA has found previous signs of water on the Red Planet. NASA’s rover Spirit had discovered sulfate-rich soil beneath the Martian surface, which suggested an earlier presence of liquid water. Also, NASA’s Mars Reconnaissance Orbit probed and found water ice in areas that were far away from the Martian polar caps. “