I just received this image of Comet 240P/NEAT from longtime Astronomy contributor Chris Schur, and I had to share it. This comet was discovered by the Near-Earth Asteroid Tracking (NEAT) program December 7, 2002. At that time, it glowed weakly at magnitude 18.4. It orbits the Sun every 7.6 years, and most recently arrived at perihelion (its Continue reading "See a comet inside a comet" The post See a comet inside a comet appeared first on Astronomy Magazine .