Ancient shoreline features hint that water on Mars once formed a vast ocean.

Even though the Red Planet's atmosphere is thin, wind is still one of Mars' most relentless sculptors.

A pull in the right direction ...

A new study has examined how future human missions to Mars could access one of the planet's most vital resources—water. The ...

ESA's first mission to another world, the Mars Express orbiter, began circling the Red Planet on June 2, 2003. Ever since, ...

Mars has an active, electrically charged surface where dust storms and spinning dust devils regularly move and reshape the ...

NASA's plans for Mars sample return are effectively cancelled as part of a bill approved by the U.S. Congress, ending efforts ...

Nearly 14 years ago, NASA’s Curiosity rover landed on Mars for a mission to explore the red planet and discover if it had an ...

This doesn’t mean Mars causes ice ages on its own. Orbital cycles are only part of the picture. Earth’s oceans, atmosphere, ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

To land on the right foot on the Red Planet, European engineers have been dropping a skeleton of the four-legged ExoMars ...