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

On January 25, 2004, NASA's Opportunity rover landed on Mars! This was the second of NASA's twin Mars Exploration Rovers to ...

Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests.

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 ...

A pull in the right direction ...

Mars Ingenuity helicopter's 59th flight was captured by the Perseverance rover's Left Mastcam-Z camera. Credit: Credit: Space ...

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

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

geological signatures indicate that around 3.4 billion years ago, a connected oceanic system existed on a planetary scale, rather than just isolated lakes.

For anyone curious about what it's like to stand on another planet, Earth offers a few convincing previews. Mars may be 140 ...

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 ...

NASA’s Mars InSight mission was designed to study the interior of Mars rather than its surface. During its operation, the lander achieved several historic firsts, from detecting marsquakes to ...