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 ...

Now, let's delve into solving the The Red Planet crossword clue, featured as 8 Down in the USA Today Crossword on January 17, ...

The findings potentially solve the paradox of how liquid water seems to have persisted on Mars even when the climate grew too ...

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 ...

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

At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the ...

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

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

Mars is absolutely dripping with evidence that the red planet was once a striking blue, complete with glistening lakes, ...

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