NASA said the crystals' shape and structure reflect the climate's conditions, including temperature and water pressure.

Scientists have discovered that huge clay deposits near the landing site of the upcoming ExoMars Rosalind Franklin rover are ...

While NASA imagery has shown evidence of ancient rivers and lakes on Mars that transitioned to dry dunes, uncertainty remains ...

The current Martian mantle contains a multitude of heterogeneous fragments of kilometer-scale sizes. These heterogeneities are believed to be the result of differentiation processes dating back more ...

It would be tempting to assume there's nothing much of note happening on Mars, but that dusty rusty planet has a lot of interesting stuff going on. Most of it has to do with rocks. Mars has a lot of ...

NASA's Curiosity rover has photographed extraordinary spiderweb-like formations on Mars that scientists believe could hold the key to ancient life on Mars ...

What can sand ripples on Mars teach scientists about weather patterns on ancient Mars? This is what a recent study published in Geology hopes to address as a team of scientists investigated how ...

Scientists have broadly agreed for years that the thousands of small cone-shaped mounds peppering Mars’ northern lowlands are ...

WASHINGTON — A NASA rover drilling into Martian rock has turned up the biggest and most varied batch of carbon-based molecules ever found on Mars — including some that, on Earth, are considered key ...

Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons. The Red Planet is a ...