First Ancestral Race

The First Ancestral Race are the mysterious god-like progenitor aliens, never seen during the course of the series, who created the beings known as "Seeds of Life" to seed the galaxy with life forms. Two such Seeds of Life were Adam and Lilith, the only two seed types that we know of. Adam and Lilith were transported in massive vessels dubbed Moons, Adam travelling in the White Moon, Lilith in the Black Moon. Adam's mission was to give rise to the Angels who would have become the dominant species on the planet upon which she landed. Lilith's mission, was to arrive at her destination and spread LCL, the "primordial ooze" from which what humans would consider "normal" terrestrial life forms would evolve, culminating (after millions of years of evolution) into humans.

However, the White and Black Moons were never meant to land on the same planet. Adam was the Seed of Life which originally landed on Earth, but 4 billion years ago the Black Moon containing Lilith violently collided into Earth, in the event later dubbed "First Impact". Thus, humans and Angels cannot co-exist and were put on the path to one day having a confrontation for mastery of Earth.

The First Ancestral Race also created the artifact known as the Spear of Longinus. A Spear was sent along in each White Moon and Black Moon, as a countermeasure should any of the Seeds ever go against their projects.