The closing song mentions the name "Everett". This refers to Hugh Everett III, a quantum physics expert who brought up the many worlds theory of alternate universes. In the context of the show, this points at the episodic adventures Dandy goes through.
Space Dandy: he's a dandy guy in space. He combs the galaxy like his pompadour on the hunt for aliens. Planet after planet he searches, discovering bizarre new creatures both friendly and not. These are the spectacular adventures of Space Dandy and ...
In the opening credits, a star forms the series title, and then Dandy flicks the star into a cluster of different-colored stars.