関連ワード:
what was the primary purpose of the apollo program what was the main purpose of the apollo program what was the primary goal of the apollo program what was the main goal of the apollo program what was the main purpose of the apollo missions what was the primary goal of the apollo mission what was the main purpose of nasa's apollo program what was the main objective of the apollo project what was the main objective of the apollo missions what was the primary objective of the apollo 11 mission
