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

geological signatures indicate that around 3.4 billion years ago, a connected oceanic system existed on a planetary scale, ...

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

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

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

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

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

So, Mars does have storms, but they’re far drier and dustier than the thunderstorms on Earth. Scientists are continually ...

"The Chinese may well beat the U.S. with a grab sample." ...

On Jan. 18, 2004, the European Space Agency's Mars Express successfully mapped Mars' south pole, and, in a first, revealed ...

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