New Mars Pictures Show Signs of Watery "Aquifers"

Stunning color pictures from Mars offer new evidence that plentiful groundwater once percolated through Martian bedrock.The new images, taken by NASA's Mars Reconnaissance Orbiter, reveal a terrain of banded rocks similar to that found in the southwestern U.S., said Chris Okubo, a postdoctoral researcher at the University of Arizona's Lunar and Planetary Laboratory.The new pictures show that