"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

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

Incredibly powerful marsquakes that violently shake the red planet don't always begin under the surface, research shows.

As the ESA explained, the images comprised of data gathered Feb. 27 by the Mars Express orbiter show clustered dots that ...

A massive meteor strike on Mars sent shockwaves across the planet, revealing that some of its tremors weren’t tectonic but ...

The first craft, the British-led Beagle 2, piggybacked on Europe's Mars Express orbiter, will hunt for chemical signs of past—or even present—life in the soil and atmosphere. Two rovers sent ...

A mysterious square formation on Mars has caught the attention of SpaceX founder Elon Musk, who expressed his desire to ...

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 ...

One of the news items that generated the most chatter among Hackaday editors this week was that ESA’s Mars Express mission is receiving a software update. And they’re updating the operating ...

A perfectly square-shaped structure on Mars, 3 kilometers wide, spotted in NASAs Mars Orbiter Camera images has sparked ...