International Observe the Moon Night
An annual celebration of lunar observation, science, and exploration.
Image credit: lunar observer Leonardo Hoet
About Earth's Moon
Tides, phases, and more — NASA's site for lunar science.
Daily Moon Guide
NASA's interactive map for observing the Moon, every day of the year.
Get Updates
International Observe the Moon Night updates and lunar science highlights, straight to your inbox.
Save the Date: September 19, 2026
You're invited! Observe the Moon with NASA.
Each year, observers around the world come together to celebrate Earth's Moon through direct observations, hands-on activities, lunar-themed music, artwork, readings, and more.
Join in from wherever you are: Attend or host a virtual or in-person event, or observe the Moon from home.
Observe With Your Community
Interested in hosting your own International Observe the Moon Night event?
Your event can be a small gathering of friends or family, an online program for thousands of visitors, or anything in between. Our event planning guide is packed with tips and resources to help you get started.
Connect
Share your perspective, and get the latest Moon observing tips.
For NASA lunar science updates, Moon observing tips, and event hosting ideas delivered straight to your inbox, sign up for our newsletter. Share your observing experience and find out how others #ObserveTheMoon on X, Facebook, Instagram, and Flickr.
Keep Observing All Year Long
NASA's interactive map for observing the Moon, every day of the year.
Find Moon phases for specific dates like your birthday or anniversary, plus recommended lunar landscape features to view each day, close-up images from NASA's Lunar Reconnaissance Orbiter, and detailed information about the Moon's position in space.
Registration will reopen in summer 2026.
Registering your event or individual observation makes you an official part of our Moon observing community.
Sign up to receive an announcement when registration opens for International Observe the Moon Night 2026.
Everyone, everywhere, every year.
In 2025, an estimated one million people in 129 countries participated in International Observe the Moon Night. Here's how you observed the Moon with us.
Past Events
Lunar Photography How-To
Capture the moment like a pro! Check out our Moon photography tips for cell phones, professional cameras, and more.
Featured Observers
Browse guest posts from International Observe the Moon Night event hosts around the world.
Event Planning Guide
How to Host: The Basics
8 easy steps to make your International Observe the Moon Night event a success.
Whether you're planning a small gathering of friends and family, a virtual program, or a large, in-person public event, we've got you covered!
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