Mr W & I went to the Assembly Rooms in Bath today, to visit "Helios", Luke Jerram's 7-metre sculpture of our sun. The official description states that it "offers a detailed view of the star, including rare features like sunspots. The sculpture is scaled so that each centimetre represents 2,000 kilometres of the real sun's surface."
The surface of the sculpture moves and changes, just as the real sun does, and the accompanying soundtrack features NASA's recording of our sun.