Void

Cosmic Void
"The Void is everything but that" - Voidwalker adage

The Void is the space between worlds, the absence of civilization and the reign of cosmic nature. It is by far not an empty realm, instead filled with particles, cosmic energy, and radiation. Dark energy currents and solar winds; beams of light and tides of gravity reign over a vast cosmos of cold and dark celestial bodies, myriad in their number. All of it only appears as a Void, because its process and substance lie beyond the boundaries of human cognition.

Local space
To each lineage and colony, settlement and enclave, there exists a local space of their own. Akin to the wilderness once surrounding the pre-historic settlements of humankind, the local space around inhabited isles divides these pockets of civilization. Isolating the natural and artificial worlds, it is nevertheless interspersed with seeds and traces of humanity, from fine particles of human fabrication to entire networks of satellites and complex clockwork of megastructures.

Sunlit Heliosphere
For centuries humanity has known the intricate structure of sheath and shell, shield, and crest produced by its homely star. The sun burns bright, emerging the planets in light and solar wind. Through the galactic medium, the Solar System travels in a sphere of light. All that exists therein is left over from the formation of the star and all planets. These are the things and elements, phenomena and events known to the Heliopolis.

Most prominent among them are the asteroids and centaurs, trojans and greeks following the great planets. Far further from the sun reside the dwarf planetary bodies and sleeping comets, captured worlds from the outside and graveyards of planets that never came to be. By all standards of the cosmos, all things within the Heliosphere are young and subject to the judgment of the only star holding dominion over this realm: The Sun.

Interstellar Void
Beyond lies the great mystery. For all its knowledge about the universe, humanity knowns still little about the greater galactic world. All that comes from without the Heliosphere is regarded as a stepping stone of utmost importance on the way to a complete understanding of the Cosmic Void. Remnants of solar systems past, worlds flung from their stars and shattered pieces of nebulae - all is said to cross the way of Sol. Thousands of bodies from the outside invade the fringes of the solar system until they come too close to the sun and either burn or are flung out further on their un-ending journey through the galaxy.