Scientists compare volcanic cones on Earth and Mars to explain how gas-rich magma forms scoria cones. Spacecraft observations and Earth analog sites provide evidence of similar eruptive processes.

Humans have been fascinated by Mars for generations, and with the invention of telescopes and later probes, we have been working hard to explore the red planet as much as possible. Over the years, ...

A giant collision in Mars’ early history created a global magma ocean and buried large fragments of debris deep within the young planet. As Mars cooled, it formed a solid crust — eventually becoming a ...

Billions of years ago, Mars’ Jezero Crater held a lake fed by rivers that could have carried minerals and maybe even organic matter. On Earth, places like that are teeming with microbial life. NOVA is ...

Phobos is the larger and innermost of Mars' two moons, and it's a fascinating celestial body. It's small, irregularly shaped, and orbiting just about 6,000 kilometers above the surface of the Red ...