The spectacular structure of the planetary nebula NGC 2818 contains the outer layers of a dying star that were expelled into interstellar space. Our own Sun will undergo a similar process, but not for another 5 billion years or so.

Universe Calendar Observing Fascinating Cosmic Wonders
The spectacular structure of the planetary nebula NGC 2818 contains the outer layers of a dying star that were expelled into interstellar space. Our own Sun will undergo a similar process, but not for another 5 billion years or so.