Graviton Core

A Graviton Core is a fragment that allows levitation of mass objects of great density. Areas such as the 13th 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 man-made "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 and Noel 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.

Locations
Graviton Core Alpha: New Bodhum-003AF Graviton Core Beta: Bresha Ruins-005AF Graviton Core Gamma: Oerba-200AF Graviton Core Delta: Academia-400AF Graviton Core Epsilon: Yaschas Massif-100AF