Mars has two permanent polar ice caps of water ice and some dry ice, and a few patches of ice both on and under the surface.

Strange, sinuous gullies etched into the dunes of Mars are finally giving up their secrets. These gouges, new experiments ...

Buried underground near the surface, frozen regions of Mars could have tiny hidden channels full of liquid water, which could be a habitable environment for microscopic organisms ...

Scientists simulated the conditions of Mars in a lab to observe how blocks of carbon dioxide "dug" their way through the ...

A NASA study shows bacteria fragments can survive 50 million years in Martian ice. Pure ice, not rock, could hold clues to ...

Mars’ north polar vortex locks its atmosphere in extreme cold and darkness, freezing out water vapor and triggering a ...

Blocks of frozen carbon dioxide sliding down Martian dunes may have carved the planet’s strange gullies, mimicking the work ...

A study led by NASA and Penn State researchers has shown that organic molecules could endure for tens of millions of years ...

Experiments show that biomolecules trapped in pure ice could withstand the harsh radiation of Mars for tens of millions of ...

Massive volcanic eruptions billions of years ago may have made it snow on Mars, leaving thick buried ice near the planet’s ...

Scientists suggest that dry ice on Mars may move and burrow beneath the surface, creating patterns similar to sandworms from Dune and shedding light on the planet’s changing landscape.

"The CO2 ice block began to dig into the slope and move downwards just like a burrowing mole or the sandworms from 'Dune.' It ...