On the eve of the 249th anniversary of American independence, NASA on Tuesday showcased a patriotic image of Old Glory as ...

"Returning the scientifically selected samples that await us on Mars, as part of a balanced portfolio, will help to ensure ...

The second half of the 19th century was a particularly interesting time to imagine Mars. This was a period during which the ...

Your blood is also red because of a mixture of iron and oxygen in a molecule called hemoglobin. So in a way, the ancient ...

The images and data being collected are already raising new questions about how the Martian surface was changing billions of ...

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

Mars appears red due to iron oxide, similar to rust and even human blood Probes reveal Mars is more tan or brown than red ...

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 ...

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 us clues ...