Graviton Core

A Graviton Core (重力子コア) is a matter from Final Fantasy XIII-2. It allows levitation of mass objects of great density. Areas such as the Thirteenth Ark were enabled to remain afloat thanks to the Graviton Core.

Story
In Academia-4XX AF, after realizing that the Proto Fal'Cie Adam would repeat fal'Cie dominance over humanity, repeating the circumstances that caused Cocoon to be enslaved by fal'Cie rule, Hope Estheim scrapped the Proto Fal'Cie Project and decided to make a manmade Cocoon instead. This new "ark," however, required more than one Graviton Core to keep it afloat as it is extremely massive. He enlisted the aid of Serah Farron, Mog, and Noel Kreiss to locate at least five cores to power the new ark, as it is found that the existed in different time periods before their time.

The Graviton Cores are also noted for documenting segments of Snow Villiers's journey through time when they are collected, and are mentioned of being left behind wherever he has been.

Locations

 * Graviton Core Alpha: New Bodhum -003 AF-
 * Graviton Core Beta: Bresha Ruins -005 AF-
 * Graviton Core Gamma: Oerba -200 AF-
 * Graviton Core Delta: Academia -400 AF-
 * Graviton Core Epsilon: Yaschas Massif -100 AF-
 * Graviton Core Eta: Sunleth Waterscape -400 AF-
 * Graviton Core Zeta: Oerba -400 AF-