アニメ『機動戦士ガンダム』のコロニー落としのスペースコロニーの素材は何ですか？
The story of "Gundam Wing" begins in the year After Colony 195, with the start of "Operation Meteor": the scientists' plan for revenge against OZ. The operation involves five teenage boys, who have each been chosen and trained by each of the five scientists, then sent to Earth independently in extremely advanced mobile suits (one designed by each of the scientists) known as "Gundams" (called such because they are constructed from a rare and astonishingly durable material called Gundanium alloy, which can only be created in outer space). Each Gundam is sent from a different colony, and the pilots are initially unaware of each other's existence.
Gundanium alloy