Astronomy 2012 Calendar. This 2012 calendar features the beautiful and intriguing world of Astronomy, which is one of the oldest sciences in the world. The first known astronomers were thought to be from ancient Greece. Historically the amateur astronomers amongst us have contributed too many important astronomical discoveries, and astronomy is one of the few sciences where amateurs can still play an active and vital role, especially in the discovery and observation of transient phenomena. This 2012 Astronomy calendar makes will make an excellent gift idea for any star gazing fanatic!