Gravitational

Gravitational is one of the original Mythic auras, present since Era 1 and credited to SPLOOCHHH. It rolls at 1 in 2,000,000 with no biome boost, which is roughly two million rolls at 1x luck or 200,000 at 10x. It is a comfortable mid-range target for players who have outgrown the early tiers but are not ready for Exalted numbers.

The Sol's RNG Wiki says the player hovers above a small purple vortex with a bright black hole embedded in the torso, pulling in purple fog, while tiny rocks swirl around and a large asteroid circles inside a purple glow. A few triangles spin around the neck to form a star, and a second identical black hole above the head warps the letters of the aura title. The cutscene shows a violet eight-pointed star on black with grey fog before the edges glow violet.

The wiki keeps a version history for this aura, including an old model that Kyawthuite still resembles, so you may see older screenshots with a different look.