Ferrihydrite typically forms quickly in the presence of cool water and so must have formed early on ancient Mars when the planet was still wet. "We are not the first to consider ferrihydrite as ...

"Mars is still the Red Planet. It’s just that our understanding of why Mars is red has been transformed." Mars is widely known for its iconic rusty red color — many people even refer to it as ...

Mars may once have held enough water to fill oceans and form coastlines. The planet’s red dust contains water and likely formed in cold conditions.

Present-day Mars is a barren and inhospitable planet, but it may have once had sandy beaches and tranquil ocean vistas. According to findings published on February 24 in the Proceedings of the ...

The color red and the planet Mars go together like Earth and its oceans or Saturn and its rings. However, our understanding of how the Red Planet got its signature hue might be wrong. A new ...

Mars, our neighboring red planet, possesses some of the most extreme topographical features within our solar system. Its colossal volcanoes, canyons and impact craters offer clues into its ...

The fourth planet from the Sun is famously a rusty red—but scientists now believe we’ve been wrong about how it got its distinct hue. The red coloration comes from iron minerals in Mars ...

Watch them dance around the planet over several nights of viewing. Mars comes next, and it is also high in the sky at sunset. Its ruddy-red look hovers with the stars of Pollux and Castor in the ...