Astronauts signing up for long-term future missions to Mars and beyond will inevitably face a wide range of health issues, including microgravity-induced lymphocyte programmed cell death.
Lava flows coiled like snail shells have been found for the first time on Mars - and they're bigger than anything similar on Earth.
The best place to look for life on Mars and other planets could be the impact craters of asteroids.
NASA's Mars Program Planning Group (MPPG) is starting to research its next Mars mission and is looking for help from scientists and engineers worldwide.
Scientists believe they've found evidence for life on Mars - in data collected 36 years ago.
ESA’s Mars Express has discovered a series of 'pit-chains' in the Tharsis region of Mars that could, says ESA, be tempting targets in the search for microbial life.
A unique, previously unseen landform could potentially provide scientists with a window into the geological history of Mars.
NASA's hoping to reorganize its budget to allow a trip to Mars by the end of the decade.
Signs of recent 'Marsquakes' have been found, indicating that liquid water could be present - and raising hopes of life.
US President Barack Obama’s proposed 2013 budget would effectively slash $226 million from NASA’s Mars exploration program.
Mars may have been an arid planet for over 600 million years, making it too hostile for any life to survive on the planet's surface.
Russia was understandably upset and perhaps more than a little embarrassed when the Phobos-Grunt probe - slated to explore a Martian moon - failed to escape Earth’s orbit and crashed into the ocean.
The failed Mars probe that was left spinning out of control when contact was lost shortly after takeoff, has crashed safely to Earth in the southern Pacific.
The discovery of microbes in any icy lava tube in Oregon raises hope that similar microorganisms could survive in the very similar conditions to be found on Mars.
As much as three percent of Mars could sustain life, say scientists from the Australian National University - but most habitable areas are underground.
NASA's Opportunity rover has found veins of a mineral that appears to be gypsum, and which could only have been deposited by flowing water.
Solar storms and Coronal Mass Ejections (CMEs) are powerful enough to erode the surface of the moon, NASA simulations indicate.
NASA's state-of-the-art Mars rover, Curiosity, set off safely for the red planet on Saturday morning from Cape Canaveral Air Force Station.
Communication with the stranded Phobos-Grunt Martian probe is coming and going, following a first successful contact on Tuesday.
The European Space Agency (ESA) has managed to re-establish communications with Russia's Phobos-Grunt spacecraft.