icy

There is also a plan to send a spacecraft to Saturn's moon Enceladus, which scientists suspect could have a liquid ocean under its icy shell that might even have the ability to host life.

On the floors of many valleys and craters, swirling, grooved patterns reveal where icy material once moved during an earlier martian ice age.

Battling over the icy slopes in crampons, they reached the summit in "very tough conditions" during a blizzard.

But the conditions are unlikely to resemble the snowy and icy spell this time last year which closed hundreds of schools and saw 12cm of snow in Nottingham.

But if you do need to use your car in snowy or icy conditions, careful preparations can help.