New photos from the European Space Agency's Mars Express orbiter give us our best look yet at a giant ravine on the Red ...

Mars is also home to Olympus Mons, the largest volcano in the Solar System. Arizona's Grand Canyon may be awe-inspiring, but it's just "a scratch" compared to the massive Valles Marineris Canyon ...

Dec. 16 (UPI) --A European spacecraft orbiting Mars has identified a "water-rich area" about the size of the Netherlands in the heart of a canyon system that dwarfs the Earth's Grand Canyon.The ...

Mars' great canyon complex, Valles Marineris, dwarfs the size and splendor of Earth's own Grand Canyon. But while geologists have a formed a fairly complete picture of how the Grand Canyon formed ...

Mars; Mars Canyon Formed When Plug Was Pulled, Study Suggests. News. By Andrea Thompson published 25 August 2009 When you purchase through links on our site, we may earn an affiliate commission.

We found a central part of Valles Marineris to be packed full of water." Alexey Malakhov, study co-author. Valles Marineris is the largest canyon in the solar system — 10 times longer and five ...

ESA's Mars Express spacecraft zoomed in on two intriguing chasms, Ius Chasma and Tithonium Chasma. These impressive trenches make up part of the canyon and extend as deep as 4.3 miles (7 kilometers).

Mars has its own version of the Grand Canyon, and scientists have learned this dramatic feature is home to "significant amounts of water" after a discovery made by an orbiter circling the red planet.