UChicago-led analysis of Mars Science Laboratory Curiosity rover data may explain why planet was likely harsh desert for most ...

Despite being known as the Red Planet, Mars shows off its swirling yellows, oranges and browns in a new satellite photo from ...

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

NASA's Curiosity rover has delivered a breathtaking 1.8-billion-pixel panorama of Mars' surface, the most detailed image of the planet to date. This milestone offers an incredible glimpse into the ...

A planet-spanning online image of Mars created at a scale of 5 meters per pixel was unveiled today. The image is freely available to the public and can be accessed online through Caltech’s Bruce ...

The interactive Global CTX Mosaic of Mars is the most detailed 3D map of Mars ever made. It was developed using 110,000 images taken by NASA's Mars Reconnaissance Orbiter.

Each pixel in the image represents 25 centimeters (9.8 inches). ... Is the US forfeiting its Red Planet leadership to China's Mars Sample Return plan? Is Mars really red?

Jupiter and Mars are about to get up close and personal to one another. Look up to the sky early Wednesday morning and you'll see what astronomers call a planetary conjunction. This is what is ...

When Mariner 4 flew by Mars on July 15, 1965, it captured the first images of another planet from space. But the first image of Mars ever seen on TV was different than expected.

A six-pack of planets will line up and light up the night sky this month, folks. Venus, Mars, Jupiter, Saturn, Uranus, and Neptune will align for our viewing pleasure from now until mid-February.