Jō Jō no Mi

Introduction
Jo Jo no Mi, or up up fruit is a devil fruit that gives the user control over is an artificial particle known as Jo Jo Particles. Jo Jo Particles are known to bond with gravitons, ultimately resulting in the termination of graviton exchanges between matter and thus the cessation of gravity as a whole.

Places in the Universe
Jo Jo Particles are a form of dark matter. In other words, it can't be detected through any means other than the observation of its effects on gravity.

It is because of Jo Jo particles that the universe is the way it is. During the big bang, Jo Jo particles facilitated the creation of diverges in the universe by nullifying the gravity which would've influenced the dispersing matter into staying interconnected.

Weaknesses
The user suffers from standard Devil Fruit weaknesses.