Add Yahoo as a preferred source to see more of our stories on Google. The European Space Agency’s Mars Express orbiter captured this view of Mars’ south polar ice cap Feb. 25, 2015. Three years later, ...

Tracing Water from Ice Caps to Subsurface Reservoirs Water on Mars is believed to originate from the vast polar ice caps, extending to potential hidden oceans beneath the surface. The journey of these ...

Mars’ frozen ice caps may be time capsules for ancient life. Lab experiments show that key building blocks of proteins can survive tens of millions of years in pure ice, even under relentless cosmic ...