slide 1 - Illustration of imagined landscape with world landmarks, silhouette of a person looking up at the moon

Observe the Moon

Registration is now open for International Observe the Moon Night on October 1, 2022! Here’s how you can join the global community of lunar enthusiasts. Observe ›

slide 2 - Composite of astronaut on the Moon surface with a timeline superimposed.

Uncovering Lunar Water

There’s water on the Moon. Follow the thread of discoveries that led up to the confirmation of its presence in 2020. More ›

slide 3 - Illustration with question marks and a thinking emoji over the moon surface

Top Moon Questions

What do you wonder about Earth’s Moon? Find the answers to some of your most frequently asked questions. More ›

Explore the Moon

Info and tips for observing the Moon.

Silhouette of two people looking at the Moon in the sunset sky.

Viewing Guide

Why can I see the Moon during the day? And other frequently asked questions about our Moon.

Top Questions about Earth's Moon

Between four and seven times a year, Earth, Moon and Sun line up just right to create the cosmic-scale shadow show known as an eclipse.

Composite of lunar eclipse phases over night sky

Eclipses

Earth’s ocean tides result from an intricate dance of forces and motions. The Moon plays a starring role.

Tides

Like Earth, the Moon has a day side and a night side, which change as the Moon rotates.

Moon Phases

When the full moon is a little bit closer to us than usual, it appears especially large and bright in the sky.

A supermoon partially obscured by treeline in the foreground.

Supermoons

Moon Phase and Libration 2022

This visualization shows the Moon's phase at hourly intervals throughout 2022, as viewed from the Northern hemisphere. Learn more›

04:52 video

2021 Event in Darjeeling, India

Join the Global Celebration

International Observe the Moon Night is on October 1. Register your participation! Image Credit: Anand Rai, https://flic.kr/p/2mFP6i1

Save the Date

Artistic graphic of silhouettes observing a first-quarter Moon. Text reads October 1, 2022.

Join us for International Observe the Moon Night. Celebrate lunar science and exploration with observers around the world on October 1, 2022.

News from NASA

Updates on the Artemis I Mission

The latest on Artemis I, the engineering test mission of systems that will carry humans to the surface of the Moon.
NASA Announces the Candidate Regions for a Human Moon Landing

Scientists have identified these 13 regions near the Moon’s South Pole as potential areas for the next Americans to land on the surface of the Moon.
Science Experiments Traveling on Artemis I

These science experiments and technology demonstrations will fly around the Moon and back.