The Helix Nebula: Knots of Wonder
June 25, 2008
Planetary nebula form when stars like our Sun cast off their outer layers of gas, forming glowing shells around the heart of a dying star.
Topics:
Human Interest, Space plasmas, Astrophysics, Astronomy, Red Square Nebula, Orion Nebula, Star, Planetary nebula, Nebula, Planetary nebulae, Nebulae, Entertainment Culture