“Noctis Mons” is the seventh-largest volcano on Mars, the biggest being this one pictured—Olympus Mons (artist's impression). Scientists have discovered a massive, deeply eroded giant shield volcano ...

Scientists noted the eruption stayed mostly contained within the volcano's usual zone, but the long flow of the eruption, ...

This MCC image, taken on September 03, 2015 at an altitude of 6144 km with a resolution of 320 m, shows an intermediate sized shield volcano known as Tharsis Tholus. It is located in the eastern ...

A volcano is an opening in the Earth's crust that allows molten rock, gases, and debris to escape from below the surface. The ...

Deep below the Earth's surface, magma is churning and flowing into the Axial Seamount, an underwater shield volcano about 300 miles off the coast of Oregon. As the volcano grows and tremors increase, ...

Since the 1970s, planetary geologists have known that volcanic features cover large swaths of Mars. Early Mariner 9 images revealed massive shield volcanoes and lava plains on a scale unlike anything ...