International Observe the Moon Night returns on Saturday 19 September. In its 15 September announcement, NASA invites people to observe the Moon together and highlights public events, including one at Goddard Space Flight Center in Maryland. Admission there is free, with hands-on activities and outdoor telescopes if weather permits. The evening has yet to take place. [1]

There is no need to travel to the United States: the programme welcomes participation from home, at virtual events or at gatherings nearby. It takes place around first quarter, when shadows along the boundary between light and darkness make the cratered landscape easier to distinguish. [2]