An image captured by the Hubble Space Telescope shows part of a nebula called Sh2-308 surrounding the star EZ Canis Majoris, a Wolf-Rayet star, a rare type of very massive star, over twenty times the mass of the Sun, and very hot that emits very strong solar winds. The star and the nebula are closely linked because the very strong solar winds push large amounts of ionized hydrogen that form a kind of temporary bubble around it.