Luminoth

The Luminoth, like the Chozo, are a technologically advanced race of beings. They were born on a distant planet, but migrated to Aether in their Golden Age. They lived in peace on Aether, until a mysterious meteorite crashed onto their planet, bringing with it large amounts of Phazon, which led to the coming of Dark Samus/Metroid Prime after her/its defeat on Tallon IV in order to try to regain her/it's original Metroid form later on. Also, Dark Aether was born, an alternate dimension that was essentially an "evil copy" of Aether. On that planet, the Ing thrived. When the Ing discovered portals that took them to Aether, they began invading Luminoth territory by possessing several creatures (including Luminoth soldiers and technology themselves). After a years-long bitter war of attrition, they had defeated the Luminoth, who retreated into the Great Temple and into stasis tubes upon the order of U-Mos. However, U-Mos stayed awake to fight and pray for salvation. It was he who guided Samus Aran to power generators located throughout Aether and Dark Aether. Once restoring power to the Luminoth, they were able to defeat the Ing and Dark Samus. Today, the Luminoth live in peace on Aether.