The Mars Express orbiter has kept an eye on an elongated cloud above Arsia Mons volcano for the last few years. The cloud is ...

Data from the Mars Express orbiter has been used to create a visualization of "a vast system of deep and steep valleys that ...

The more scientists study the Red Planet, the more they find unusual objects and patterns scattered across Mars' surface. Here are some of the most baffling.

For the first time in human exploration of Mars, the presence of a stable, subterranean body of salty (briny) water has been strongly suggested by data returned by the European Space Agency’s ...

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New data from the European Space Agency's Mars Express orbiter suggests a massive deposit called the Medusae Fossae Formation (MFF) holds enough water ice to cover the entire planet in an ocean ...

A total of six NASA rovers have been sent and the images of the surface of the planet are now so close up some people say it ...

All the Latest Game Footage and Images from Surviving Mars: Martian Express Trains are here! With the Martian Express pack you’ll finally be able to move your colonists and resources between ...

The opposition is exact on Nov. 3, but we will feel the effects of the face-off for several days before and after.

"Some of these features are surprisingly dark compared with their icy surroundings, earning their nickname of 'cryptic terrain.'" Two European Mars orbiters spied a variety of cryptic surface ...

On Nov. 3, Mars will enter the creative and expressive sign of Leo, and it's time to put your talents on display with ...

It’s easy to come across as controlling or overbearing with Pluto’s energy so prominent; therefore, balance is key: express ...