A new map of Mars has revealed mysterious structures hiding beneath the sediment layers of a lost ocean. The researchers detected about 20 features scattered around the planet's north polar cap ...

Launched 20 years ago on April 7, the orbiter, which takes its name from Arthur C ... For many years, the most complete global maps of Mars were made using Odyssey's infrared camera, called ...

"It's been six months of hard work with Google," said Greg Mehall, ASU Mars mission manager. The new Web site resembles Google's earthly maps site, which has been modified before to create a ...