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

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

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

Mars, the fourth planet from the sun is famed for its rusty red appearance. Here we explore the Red Planet in more detail.

Facts about Mars Mars is the fourth planet from the sun in our solar system and is called the Red Planet because its abundant iron minerals oxidize, or rust, and make it appear red.

For centuries, Mars has captivated the human imagination. Its reddish appearance has earned it the nickname “The Red Planet,” but is it really as red as we’ve been led to believe? While Mars ...

Mars' missing atmosphere may be locked up in the planet's clay-rich surface, a new study by MIT geologists has suggested. According to the researchers, ancient water trickling through Mars' rocks ...

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 ...

Look up to the sky Wednesday morning and you'll see what astronomers call a planetary conjunction as Jupiter and Mars appear to be close together.

New seismic data reveals that hundreds of space rocks crash into Mars each year, which could affect how space agencies land robots and human explorers on the planet.

The next Mars retrograde will begin October 30 and will last for about three months. At the end of January, Mars will appear to correct its course and start moving back east again.