ESA, Hubble & NASA
This Hubble Space Telescope image shows a dazzling star cluster in the well-known Eagle Nebula. The NGC 6611 cluster, which is 6,500 light-years from Earth, formed about 5.5 million years ago. It is a very young cluster, containing many hot, blue stars whose fierce ultraviolet glow makes the surrounding Eagle Nebula glow brightly. The open star cluster and the associated nebula together are also known as Messier 16. This stunner was the European Hubble team's "Picture of the Week" for Jan. 3.