The European Space Agency's Mars Express has revealed strong evidence that an ocean once covered part of Mars.

A NASA-led team has used radar sounding technology developed to explore the subsurface of Mars to create high-resolution maps of freshwater aquifers buried deep beneath an Earth desert, in the first use of airborne sounding radar for aquifer mapping.

A NASA radar probe being used to find underground ice on Mars could be used to help find water in the desert climates of the Middle East.

ESA’s Mars Express will skim the surface of Mars’ largest moon Phobos on Wednesday evening.

Scientists using ESA’s Mars Express have produced the first crude map of aurorae on Mars.