A worldbuilding idea I've had for a while, where pods of these seti-taceans roam the stars with resonant cavity flukes. I plan on designing more, and as a rule I'll be basing each one off a real world celestial object or one I find in space engine. This one is based off of my favorite galaxy and the galaxy in which I plan on having my characters inhabit, Hoag's Object, called Linunratta by said inhabitants. This one is known as Noam and is the matriarch of all seti-taceans in Linunratta and worshipped by most cetaceans. All seti-taceans host a cloud around them that mimics the celestial body they take after.

I encourage anyone who likes this concept to design their own, the only rule I ask for this species is that they should be based off of some celestial body. Or not, it's your design.

(P.S. I know that red thing in the original image is a separate ring galaxy, I just thought it'd be cool to include.)