International Observe the Moon Night (InOMN) is a worldwide, public celebration of lunar science and exploration held annually since 2010. One day each year, everyone on Earth is invited to observe and learn about the Moon together, and to celebrate the cultural and personal connections we all have with Earth’s nearest neighbor.

InOMN is usually held in the fall, when the Moon is around first quarter. Fall in the Northern Hemisphere is generally a good time for InOMN, because of school schedules and the weather, and a first quarter Moon is visible in the afternoon and evening, a convenient time for most hosts and participants. Furthermore, the best observing is typically along the dusk/dawn terminator, where shadows are the longest, not at full Moon.

The InOMN Coordinating Committee is led by NASA’s Lunar Reconnaissance Orbiter Education and Communications Team, with representatives from NASA’s Solar System Exploration Research Virtual Institute, the Lunar and Planetary Institute, the Planetary Science Institute, the Astronomical Society of the Pacific, and CosmoQuest. Our partners include the Science Festival Alliance and Google Lunar X Prize.

Read more about InOMN by checking out the articles below.

International Observe the Moon Night: An Outreach Opportunity this October. 2016, Reflector magazine (vol. 68, no. 3, pages 24 and 27) ­a publication of the Astronomical League.

Recent Lunar Science Discoveries and an Opportunity to Celebrate Them. 2016, The Universe in the Classroom (no. 92)­ a publication of the Astronomical Society of the Pacific.