Mars is no longer just a blank red canvas for planetary scientists. A new generation of high resolution maps is turning the planet into a detailed treasure chart, highlighting the specific craters, ...

Ancient Mars is coming into sharper focus as a planet laced with rivers, deltas and vast drainage basins, and that new map of its watery past is rapidly reshaping where scientists intend to look for ...

Billions of years ago, it rained on Mars. The water collected in valleys and rivers, filled and spilled over the rims of craters, and was funneled into canyons, perhaps even making its way to a large ...