Gaia is a rotating 7-metre globe featuring the NASA imagery of the earth’s surface from outer space and marks the 50th anniversary of the moon landings in 1969. It is the creation of artist Luke Jerram and is floating under the spire crossing of Salisbury Cathedral. In Greek mythology, Gaia is the personification of the earth and this installation is a timely backdrop to the debate about how our fragile planet should be preserved for future generations. It is a wonderful opportunity to see earth as the first astronauts in space viewed our blue planet.

Bristol-based artist Luke Jerram has been...