Stardust, like his brothers, were accidentally created by Moon Lord, a mythical beast. He was created 15 years prior to Vortex's "birth". He and his brothers failed to live up to their "father's" expectation: to be the most evil person in the universe.
The brothers took the young Celestial to a distant planet to raise her there, but Moon Lord discovered that they aren't living up to his wish and he attacked the planet. That event left the planet destroyed, and the brothers had no choice but to steal a ship and fly away, which resulted in them crashing on Gaia.
Stardust along with his brother agreed with Nebula with the name "Vortex" for their younger sister. Later, when Vortex turned 22, she had a baby named Redna with her boyfriend Felix, and Stardust became her uncle.
The family currently lives in Gaia.
Home: Termina City
Family: Solar (twin brother), Nebula (twin brother), Redna (niece), Vortex (younger sister)
Weapons: His summoning staff
Likes: Bullying Vortex (formerly), trash talk, act cool
Dislikes: Vortex (formerly), not being able to trashtalk, being bossed around