Image Gallery: fog in Valles Marineris

Water fog in the Valles Marineris canyons. Image Credit: ESA/DLR/FU Berlin

After yesterday’s exciting news about the Curiosity rover finding methane and organics on Mars, here is a reminder that the planet is rather Earth-like in other ways too, such as having water clouds and fog. This well-known image is from the Mars Express spacecraft, showing dense fog filling canyons in Valles Marineris, the giant canyon system that dwarfs Earth’s Grand Canyon. Even in Mars’ thin… Read More

Curiosity rover finds methane and organics on Mars

NASA's Mars rover Curiosity drilled into this rock target, "Cumberland," during the 279th Martian day, or sol, of the rover's work on Mars (May 19, 2013) and collected a powdered sample of material from the rock's interior.

NASA’s Mars Curiosity rover has measured a tenfold spike in methane, an organic chemical, in the atmosphere around it and detected other organic molecules in a rock-powder sample collected by the robotic laboratory’s drill. “This temporary increase in methane – sharply up and then back down… Read More

Image Gallery: polygons in Martian crater

New HiRISE image from the Mars Reconnaissance Orbiter showing an amazing network of polygon fractures inside a crater. The fractures are thought to be caused by the cracking of ice-cemented soil (permafrost). They are also known as periglacial landforms, such as in the polar regions on Earth. They are common on Mars, even near the equator, … Read more

New study shows carbon in Martian meteorite to be ‘likely of biological origin’

The possibility of ancient life on Mars just received an added boost: new analysis of carbon inside a Martian meteorite shows that it is likely of biological origin, according to an international team of scientists from EPFL, it was announced on Dec. 2, 2014. The meteorite, called Tissint, was first found in the Moroccan desert … Read more