Luke Jerram’s Gaia has returned to Southwark Cathedral. The hope is that it will inspire visitors of all ages into positive action to protect the planet. Gaia is a touring artwork by Luke Jerram measuring seven metres in diameter and created from detailed NASA imagery of the Earth’s surface. It was displayed at Southwark Cathedral two years ago and now has returned. Gaia slowly revolves to surround-sound music by composer Dan Jones. Each centimetre of the internally lit sculpture represents 18km on the Earth’s surface. Gaia is at Southwark Cathedral until Saturday 2 November. During this time entry to the cathedral, usually free, will cost £5.