NGC6888 The Crescent Nebula & Wolf Rayet Star (WR136). Credit: John Chumack. Here’s an impressive shot of NGC 6888, also known as the Crescent Nebula, which is a cosmic bubble about 25 light-years across. It is part of the massive Gamma Cygni Nebula region, and in the center is a powerful, bright and massive Wolf-Rayet […]