Celestial Bodies are the source for activity in Dark Forest. They are capturable and are used to further increase the size of a player's empire. Most allow for their owners to use it to produce resources for the rest of the game.
All celestial bodies higher than level 0 have pirates that must be defeated before a player can capture it. The number of pirates is typically proportional the celestial body level.
There are multiple types of celestial bodies, each one having their own unique functions and usage.