Minghassi

A species of gold-skinned humanoids. They are often described as looking "perfect."

The Minghassi, though a minority demographic of the galaxy, were the dominant culture during Season 1 of Nebula Jazz. They were responsible for destroying Earth using their fabled superweapon.

Cross-Breeding
Officially, the Minghassi could never cross-breed with any other species, due to their utmost genetic perfection. This, however, turned out to not be true. As a result of an illegitimate child between a Minghassi prince and a human commoner, planet Earth is wiped out by Duke Meako.

Agaran Scepter of Ascension
The Scepter is necessary for the Minghassi superweapon to function. However, upon activation by Aurora and Dave, a mass extinction event is triggered, killing the great majority of all Minghassi.