Back in June, we had a glimpse of the incredible Crescent Nebula, located 5,000 light-years away in the constellation Cygnus. This giant bubble of gas was formed by a Wolf-Rayet star called WR 136, which shed its outer layers. Now its powerful stellar wind is driving particles at 3,000 km/s and literally “carving” the iconic crescent shape out of this gas. The Dwarf Mini image clearly shows the amazing glow of hydrogen and oxygen filaments against the background of a dense star field. Ahead of this extreme star is a bright finale – a supernova explosion that will change this corner of space forever. #Astrochata