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

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

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 ...

For centuries, Mars has captivated the human imagination. Its reddish appearance has earned it the nickname “The Red Planet,” but is it really as red as we’ve been led to believe? While Mars certainly ...

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

MARS was not always the beaming red we’re so used to seeing in space. Scientists have revealed that it was actually a “blue ...

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

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

Mars has an active, electrically charged surface where dust storms and spinning dust devils regularly move and reshape the landscape. Mars is often portrayed as a dry, empty world, but the planet is ...

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