While in Chile recently, to see the Total Solar Eclipse, SPA member, Alison Harvey, took this image of the setting Sun over the Pacific Ocean capturing the often-elusive Green Flash. The Green Flash occurs because of the strong refraction of sunlight through the Earth’s atmosphere, which is thickest when we look at any celestial object very near to the horizon. Refraction causes the sunlight to separate into its individual colours resulting in the very edge of the Sun. It is an effect caused by the Earth’s atmosphere rather than anything directly connected with the Sun. It is still very exciting to see and capture on camera. Well done Alison!