NASA scientists have uncovered an unexpected presence inside Mars, a solid mass around 373 miles in size. This finding has been explained in detail within the journal Nature. The data on which these ...

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(CNN) — Here’s a look at the exploration of Mars. The United States, Soviet Union and China are the only three countries to land a spacecraft on Mars. There have been nine successful US Mars landings: ...

Image – resolution is 25 centimeters (10 inches) per pixel. During its first week of observations from low orbit, NASA’s newest Mars spacecraft is already revealing new clues about both recent and ...

WASHINGTON — NASA’s Mars Reconnaissance Orbiter has observed a new category of minerals spread across large regions of Mars. This discovery suggests that liquid water remained on the planet’s surface ...

Here's some background information about Mars exploration. The United States and the Soviet Union are the only two countries to land a spacecraft on Mars. Facts:There have been eight successful US ...