NASA planned to mark International Observe the Moon Night on Saturday, Sept. 19, 2026, with events across the country, including a celebration at the Goddard Space Flight Center Visitor Center in Greenbelt, Maryland, according to a NASA article published Sept. 15, 2026.

The Goddard event was scheduled from 6 to 9 p.m. EDT, with interactive activities, artwork and crafts, a photo kiosk, and telescopes set up outside depending on weather. Inside, visitors could see a real Apollo 14 Moon rock. The article said Dr. Amanda Nahm, a planetary scientist at NASA Headquarters, would speak at 6:30 p.m. about lunar science and Artemis II, and Ernie Wright, a scientific visualizer at Goddard, would offer a more technical look at lunar data visualizations at 7:30 p.m.

According to the article, the event was free and family friendly, required no registration but welcomed advance sign-ups, and was to take place rain or shine with free parking. The celebration was sponsored by NASA's Lunar Reconnaissance Orbiter mission and Goddard's Solar System Exploration Division, with support from partners. People unable to travel to Greenbelt were invited to observe the Moon or find local or virtual events.