astronomy . Astro Courses . Astro News . ... Learn more about science with Armagh Planetarium's bite-sized PDF guides on various aspects of astronomy and space. All articles are copyright Armagh Planetarium. ... Stars and Constellations . Bluffer's Guide to Orion . ... Bluffer's Guide to Sirius . Bluffer's Guide to Taurus . ... Deep Time: Earth's History and Future . ... Can you find love on the Moon? ... A Bluffer's Guide to Saturn . ... Pulsar Pioneer Visits Armagh Planetarium . ...