Hints of buried water on Mars have swung between tantalizing and controversial, but one idea keeps resurfacing: lakes could persist if they sit beneath a protective lid of ice. Instead of needing a ...

Thin, seasonal ice may have protected ancient lakes on Mars, allowing liquid water to last for decades despite cold ...

If you've ever looked at Mars through a telescope, you probably noticed its two polar ice caps. The northern one is made largely of water ice—the most obvious sign that Mars was once a wetter, warmer ...

New climate modeling suggests that small lakes on ancient Mars could have stayed liquid for decades, even in a generally cold environment. Small lakes on early Mars may have stayed in liquid form for ...

Using a satellite to peer beneath layers of dust and ice at Mars’ south pole, scientists have detected a 12-mile-wide span of briny water, a large, stable reservoir akin to lakes buried beneath the ...

A study by scientists at Penn State and NASA shows that intact biomolecules from dormant microbes break down much more slowly ...

This image, combining data from two instruments aboard NASA's Mars Global Surveyor, depicts an orbital view of the north polar region of Mars. The ice-rich polar cap (the quasi-circular white area at ...

The north pole of Mars is slowly sinking under the weight of an ice cap that only formed within the past few million years. And, in the process, it’s telling us something about what the planet’s ...

There might be a hidden ocean's worth of liquid water below the surface of Mars, seismic evidence suggests. According to a new paper published April 25 in the journal National Science Review, ...

An artist's impression of the Mars Express spacecraft probing the southern hemisphere of the planet. Using a satellite to peer beneath layers of dust and ice at Mars’ south pole, scientists have ...