Earth (Scenario: Neutropia)
Earth (Sol-3) is the third planet from Sol (sometimes known as the Sun, or Hestia). It is often known as the "Pale Blue Dot", since its surface is 78% covered by water, and "Mother Earth", as its the planet where humanity initially rose.
Despite losing the role as the only planet inhabited by humanity, it still plays a big role in human civilization. This is due to its centricity on the Orion-Cygnus trade route, which encompasses nearly all of Human Space.
As of 2400, it is one of the most populous planets in Human Space, having a population of around 12.3 billion on the surface and around 83 million in immediate orbit, while there are around 947 million living on the Moon (also known as Luna).