The European Space Agency’s (ESA) Mars Express orbiter has uncovered signs that Mars once had a vast network of waterways, including a planet-spanning ocean in its northern hemisphere, and an extensive network of rivers that carved majestic canyons through the ancient Martian landscape. Using its Mars Advanced Radar for Subsurfaceread more

A significant layer of water ice has been spotted across the mid latitudes of Mars, located just a few feet below the planet’s surface. This new finding adds a new layer to the geological history of the Red Planet, and also may offer a useful source of water for future human expeditions sent there.