Planetary Nebula NGC 7293 also Known as the Helix Nebula
Jet Propulsion Laboratory https://www.jpl.nasa.gov/ May 5, 2005
Ultraviolet image of the planetary nebula NGC 7293 also known as the Helix Nebula. It is the nearest example of what happens to a star, like our own Sun, as it approaches the end of its life when it runs out of fuel, expels gas outward and evolves into a much hotter, smaller and denser white dwarf star.