Before the 21st century, humankind only lived on Earth and explored space on missions. In the 21st century, however, humankind traveled to several other planets and moons to colonize them.  Hyperspace technology allowed travel in days, both people and package delivery. 
As mankind traveled back and forth in the solar system, trash was discarded and collected in various areas. 
Planets and major locations Edit
Mercury is the innermost and smallest planet in the Solar System.
- Main article: Venus
Venus is close in size to Earth, and is structurally similar to Earth. It was colonized and given an atmosphere. 
- Main article: Earth
Earth is the largest and densest of the four inner planets, the only one known to have current geological activity, and is the only place in the solar system where life naturally existed. After the Astral Gate accident near its moon, Luna, however, the surface was much less habitable. 
- Main article: Mars
Mars is smaller than Earth and Venus. It is a terrestrial planet with a thin atmosphere, having surface features reminiscent both of the impact craters of the Moon and the volcanoes, valleys, deserts and polar ice caps of Earth. It was in these craters that colonies were created. 
Bohemian Junkheap Edit
- Main article: Bohemian Junkheap
Asteroid belt Edit
- Main article: Asteroid belt
- Main article: Jupiter
Neptune was the next planet after Uranus.
- Main article: Pluto
Pluto was the last major orbiting body in the Solar System. It had a prison colony in 2071. 
Mercury was only shown on a sign on the restaurant space station in Gateway Shuffle.
Neptune was not mentioned in the series or movie.
- Solar System on Wikipedia