Because Mars doesn’t have tectonic plates that constantly change the surface, regolith holds clues about the planet’s 4.6-billion-year lifespan. Much like how scientists can look at the rings of a ...

"At one point, Mars had moving tectonic plates like Earth does," the researchers wrote. "The movement of these plates and the molten rock beneath them could have created something like the ...

Unlike the volcanoes of Earth, Olympus Mons keeps growing because there are no plate tectonics on Mars. This means the lava does not get displaced but accumulates in one place. The base of Olympus ...

Mars’ thick crust may have been a hidden engine of geological activity, producing granitic magmas and sustaining underground ...

Mars, even to the casual observer, bears a striking resemblance to Death Valley in satellite imagery, featuring sand dunes, salt flats, and playas. Like Death Valley, the Martian surface is actively ...

The north pole of Mars is slowly sinking under the weight of an ice cap that only formed within the past few million years. And, in the process, it's telling us something about what the planet's ...