RahXephon(2001)

RahXephon

A mysterious orb envelops the city of Tokyo. All forms of communication are severed, leaving the inhabitants of the newly dubbed "Tokyo Jupiter" ignorant to their fate. Along with the United Nations, a special organization known as TERRA is formed: their mission is to liberate Tokyo from the otherwordly MU -- those responsible for Tokyo's capture.

(Source: VIZ Media)