From Cepheus to Vela, let’s go on a tour of PLANETARY NEBULAE, exploring stellar blowouts that have been cast off by dying Sun-like stars. We’ll start with nearby objects and move outward; be sure to ...

For new observers, the night sky appears to be a monochrome scene of black and white. Although astronomy books and websites are replete with objects revealing vivid reds, pinks, blues, and greens, ...