Video: Mercury surface mapped by Nasa

Scientists have shown off a stunning new colour map of Mercury.

The maps's made from thousands of images taken over a year by Nasa's Messenger spacecraft.

Mercury's surface would normally look a dull, brownish-grey colour but scientists used different colours to highlight variations in the makeup of its rock.

Mercury's surface normally looks a dull, brownish-grey colour

Mercury is the smallest of the solar system's eight planets and is the closest to the Sun.