“The presence of liquid water [on Mars] is a broad topic that includes rains, rivers, lakes, as well as oceans,” says Ezat ...

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

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 ...

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 ...

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

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

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

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 ...