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International Observe the Moon Night

An annual celebration of lunar observation, science, and exploration.

Composite of a photo of group of people outdoors at night. In the foreground, a woman stand near a large telescope and holds her phone camera to the eyepiece as some kids stand an watch. An image of the Moon and also swirling lines are overlaid over the photo.

Observe the Moon with NASA

You're invited! The goal of International Observe the Moon Night is to unite people around the world in a celebration of lunar observation, science, exploration, arts, and culture. You can join International Observe the Moon Night from wherever you are. The event occurs annually in September or October, when the Moon is around first quarter. Attend or host a virtual or in-person event, or observe the Moon from home.

Learn More & Join In
Catch up on NASA lunar exploration and science from the past year, discover what’s on the horizon, and explore the ways in which participants from around the world celebrate International Observe the Moon Night.
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