The Mars Express orbiter has kept an eye on an elongated cloud above Arsia Mons volcano for the last few years. The cloud is reoccurring, grows incredibly fast and is "made up of water ice," according ...

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

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

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

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

Mars Express mission. The main objective of this mission, which reached Mars in late 2003) is the search for traces of water and signs of life. During the expected four-year mission, seven instruments ...

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

CaSSIS on ESA’s Trace Gas Orbiter, and the High-Resolution Stereo Camera on Mars Express. While many of these events were believed to be tectonic, new findings suggest they may actually be the ...

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 ...