NASA has revealed a concept for the next generation of flight on the Red Planet, the "Mars Chopper." Credit: Space.com | ...

A sweeping orbital survey charted over 9,320 miles (15,000 kilometers) of riverbeds winding etched into Noachis Terra, a ...

The aerospace giant says it can revive Mars Sample Return with a leaner, lower-cost approach drawing on proven designs.

The spacecraft now almost tips upside down relative to Mars to give its radar the best view. The Mars Reconnaissance Orbiter ...

The new images by the Curiosity rover on Mars show "dramatic evidence" of ancient groundwater in crisscrossing low ridges, ...

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.

From arachnid-like formations and mysterious blobs to an underground ocean and a giant volcano, here are our 10 favorite things scientists discovered on Mars this year.

By combining observations from space and experiments on Earth, scientists rethink the red planet's history and why it's red.

A new study may have revealed the true source behind how the Red Planet got its hue. It’s been long thought that Mars shines red due to the rusted iron minerals within the dust that covers the ...

Mars, the fourth planet from the sun, is a dry, rocky world. Its famous red color has earned it the nickname the Red Planet. Mars has fascinated people throughout history, and today, it is one of ...

The concept of terraforming Mars — transforming the planet's climate to support life as we know it — has long belonged to the realm of science fiction. But a new study argues that it's time to ...

Did it snow on Mars? New research suggests ancient Red Planet precipitation was a lot like Earth It's hard to figure out if Mars was “warm and wet” in its ancient past, but climate models give ...