One of the most encouraging signs for those searching for evidence of early water on Mars has been the existence of clays. But a French-US team has now rained on that particular parade.
Scientists studying data from ESA's Mars Express spacecraft say they may have spotted signs of water on the planet's surface.
NASA's Curiosity Mars rover is taking a break from driving to prepare for full use of the tools on its arm.
Dutch company Mars-One says it's won enough sponsorship money to create a reality TV show which it hopes will in turn fund a manned trip to Mars.
The kids are in the back, there's gas in the tank, and NASA's Mars rover Curiosity has set off on its first long trip.
NASA's Curiosity rover has beamed back the first telephoto images from the Martian surface, showing a mountainside marked by eroded knobs and gulches, and geological layering clearly visible.
Ray Bradbury's now officially part of the galaxy.
Humans have left the first wheel tracks on Mars, following the Curiosity rover's first, short drive.
NASA's Curiosity Mars rover will take its first test drive today, in a 30-minute jaunt that will end where it started.
NASA's announced plans for another visit to Mars, this time to check out its interior.
Yesterday, an invader from another planet fired off a laser 30 times, in what we have to hope won't be seen as an act of aggression by any overlooked Martian inhabitants.
No this is not a report about a horrible diseases on Mars we could potentially bring back to Earth - that was pretty much the plot of The Andromeda Strain, except that disease came back from the moon.
NASA's in the final stages of a series of software updates to the Curiosity Mars rover designed to optimize it for surface operations.
Mars may be experiencing plate tectonics - a phenomenon previously thought to be confined to Earth.
The Curiosity rover's sent back the first images from its color Mast Camera (Mastcam), along with a 360-degree panorama of Gale Crater.
If China or the US colonized Mars, would its inhabitants eventually declare independence from Earth?
Stunning images are already being beamed back from the Curiosity Mars rover as it undergoes a series of health checks before beginning its mission of exploration.
NASA's Curiosity rover landed on Mars at 10:31 p.m. Aug. 5 PDT, or about 3 p.m. local time on the red planet.
NASA's Mars Curiosity remains on track to reach its destination on August 5, when the rover begins its complex descent to the red planet.
NASA's Curiosity rover is scheduled to land on the surface of Mars at 1:31 AM EDT on August 6.