The discovery of pale, loose rocks on the Martian surface could suggest that Mars was once a much warmer world.

Frigid water helped paint Mars red and may have shaped a vast coastline, two new studies into the planet’s history reveal. Scientists have detected a possible ancient beach in Mars’ northern ...

According to NASA, carbon dioxide ice is transparent ... Mars get differing amounts of sunlight as the planet orbits the sun. However, because Mars takes 687 Earth days to orbit the sun, the ...

"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 ...

The full disc of Mars is seen with the polar ice caps slightly off centre to the top left and bottom right. Clouds wrap around the planet’s curved horizons. Dark surface markings are clearly seen ...

These rocks might contain chemical fingerprints or organic molecules, fueling speculation about the possibility of ancient microbial life on the planet. Mars' blue rocks, along with dried ...

Despite the fact that scientists have now sent more spacecraft to Mars than any other extraterrestrial planet, the world contains much more to learn—even regarding its most iconic feature.