Luke Jerram, the artist responsible for the amazing models of the Moon and Earth that have been hung in places like the Natural History Musuem, St John the Baptist Church, and the Old Royal Naval College, is back with a sculpture of Mars. His seven-metre wide version of the red planet is being hung in Hintze Hall at the Natural History Museum in honour of Mars Day, which celebrates the 6th anniversary of the launch of the first ExoMars mission.