Mars

A new paper suggests that the element vanadium in combination with Raman spectroscopy on organic material could serve as potential biosignatures on Mars.

A region of Mars named Aeolis Dorsa contains some of the most spectacular and densely packed river deposits seen on Mars.

The Gale Crater site once flowed with rivers ending in a lake.

NASA scientists have found evidence that Mars' crust is not as dense as previously thought, a clue that could help researchers better understand the Red Planet's interior structure and evolution.

Preparation of NASA's next spacecraft to Mars, InSight, has ramped up this summer, on course for launch next May as the first interplanetary launch from California.

NASA's Mars 2020 mission, which will look for signs of past life on Mars, will use smart methods originally developed to find the oldest life on Earth.

An ancient mountain range on Mars preserves a complex volcanic and tectonic past imprinted with signs of water and ice interactions.

The sharp eye of NASA's Hubble Space Telescope has captured the tiny moon Phobos during its orbital trek around Mars.

NASA's Mars Exploration Rover Opportunity recorded a panoramic view before entering the upper end of a fluid-carved valley that descends the inner slope of a large crater's rim.

A dried-out river valley with numerous tributaries is seen in this recent view of the Red Planet captured by ESA’s Mars Express.