Date Program 1 April - 30 April Discovering the Solar System: Projects for the Keen–Eyed and Camera–Toting Observer (Observing Challenges) 1 April - 30 April In the Footsteps of the Celestial Police (Observing Challenge) 1 April - 30 April Lunar Explorations (Observing Challenge) 13 April Global Star Party 21 April SunDay 22 April Exploring the Stars of the Southern Hemisphere TBD Walking on the Moon - Online Observing Event Read More..