Destruction of a Solar System

The evolution of a star often kills off its orbiting celestial bodies. The destruction of a solar system can happen with any star in any part of its life cycle. It typically happens with main sequence and giant stars.

A main sequence star gets its energy from the souls and nuclear fusion that takes place in its core. Too many souls in its core and the star implodes into nothingness, taking the entire solar system with it, and if there are too few, its gravity cannot hold the star in place. The sheer size of a giant star can completely engulf the first few planets in a solar system, and annihilate lifeforms on those further out.

A giant star that sheds its outer layers will transform into a white dwarf. The white dwarf is what is left, a remnant, a husk of the giant's core. If a giant planet If the core of a giant star collapses, it creates a supernova.

Calana's Halo by Mochimanoban

The destruction of a solar system is an impending threat facing all life in any galaxy. While these events are typically billions of years away, many spacefaring civilisations are desperate to find a solution.

Some stellamancers possess the the strength to halt this process. The Star Warriors fly around the Yonderverse in search of solar systems in need. They rescue planets who's stars are transitioning into the next phase of their lives, by either halting or reversing the process or by moving residents to new planets.

Whether or not a star is deemed a major or a minor star is dependent on a number of factors, such as size, density, and magical qualities. It is illegal in many galaxies to halt or reverse a major star, but in most galaxies it is well within the law to mess with minor stars. With major stars, planetary residents are invited to leave their planet, or be burnt alive.

Some Dyson Spheres suspend its star in its life cycle, preventing it from imploding or expanding. Calana's Halo is one of these, locking the Cantyma System's Calana as an eternal red giant.