Latest Arabia quadrangle Stories

ESA's Mars Express has returned new views of pedestal craters in the Red Planet's eastern Arabia Terra.Craters are perhaps the quintessential planetary geological feature. So much so that early planetary geologists expended a lot of effort to understand them. You could say they put craters on a pedestal. This latest image of Mars shows how the Red Planet does it in reality.Craters are the result of impacts by asteroids, comets and meteorites. In a pedestal crater, the surrounding terrain is...

Climate cycles persisting for millions of years on ancient Mars left a record of rhythmic patterns in thick stacks of sedimentary rock layers, revealed in three-dimensional detail by a telescopic camera on NASA's Mars Reconnaissance Orbiter. Researchers using the High Resolution Imaging Science Experiment camera report the first measurement of a periodic signal in the rocks of Mars. This pushes climate-cycle fingerprints much earlier in Mars' history than more recent rhythms seen in Martian...

By AARON MACKEY Mars may have had water coursing through its red soil for a billion years longer than scientists previously had thought, increasing the possibility that the planet could have supported life, research conducted by a Tucson-based institute shows. Using high-resolution images from a camera developed at the University of Arizona, researchers with the Planetary Science Institute examined soil deposits on plains that surround a vast canyon network that runs around the planet's...