NASA photos appear to show a pyramid-like structure the same size as Giza on Mars, prompting speculation about whether an ...

New experiments have shown that the core of Mars formed much faster than Earth's core, thanks to molten iron and nickel sulfides seeping down through solid rock and into the center of the Red Planet.

A strange formation spotted deep within a massive Martian canyon is once again fueling debate over whether something more ...

Ground-penetrating radar reveals a long-lost river system hidden under the surface of Mars. (NASA/JPL/UCLA/UiO/ETH Zurich) ...

The observation of small gullies on Mars was one of the more unexpected discoveries of the Mars Observer Camera (MOC) aboard the Mars Global Surveyor spacecraft. The characteristics of these gullies ...

Mars has a history of liquid water on its surface, including lakes like the one that used to occupy Jezero Crater, which have long since dried up. Ancient water that carried debris—and melted water ...

How did the moons of Mars, Phobos and Deimos, form and evolve orbiting the Red Planet? This is what a recent study published in Icarus hopes to address as a team of researchers investigated the ...

Flying over the Martian south pole, two European satellites have spotted hundreds of 'spiders' sprouting up across a mysterious formation known as Inca City. In the south polar region of Mars lies a ...

Add Yahoo as a preferred source to see more of our stories on Google. New experiments have shown that the core of Mars formed much faster than Earth's core, thanks to molten iron and nickel sulfides ...

Lab experiments suggest gullies on Mars might form when carbon dioxide heats up. The plausibility of sublimation driven erosion or gully formation is not in doubt. This isn't the first study to ...