10 Fun Facts About the Moon for 2026

The Moon is one of the most familiar objects in the night sky—and one of the most scientifically valuable. It influences Earth’s tides, stabilizes our planet’s rotation, and preserves a deep record of solar system history.

Below are 10 confirmed Moon facts with sources you can verify.

10 Fun Facts About the Moon for 2026

1. The Moon is Earth’s only natural satellite and is tidally locked, which is why we always see nearly the same side from Earth.Source: NASA – Moon Facts
2. It’s the fifth-largest moon in the Solar System, with a diameter of about 3,475 km (about 27% of Earth’s diameter).Source: NASA – Moon Facts
3. The Moon orbits Earth at an average distance of about 384,400 km (239,000 miles).Source: NASA – Moon Facts
4. The Moon formed about 4.5 billion years ago (shortly after the solar system formed).Source: NASA – Moon Facts
5. Its surface gravity is about 1.62 m/s²—roughly one-sixth of Earth’s.Source: NASA – Moon Facts
6. The Moon has an atmosphere—barely. It’s mostly an extremely thin exosphere, so it doesn’t behave like Earth’s air and doesn’t produce “weather” in the usual sense.Sources: NASA – Lunar Atmosphere | NASA – Is There Weather on the Moon?
7. Because there’s no significant atmosphere, temperatures swing wildly. Commonly cited extremes range from about -173°C (shadow) to 127°C (sunlight).Source: Natural History Museum – Moon factfile
8. The Moon’s surface is heavily cratered and preserves ancient impact history because it lacks liquid water and strong winds that would erase craters quickly.Source: NASA – Earth’s Moon (craters overview)
9. The Moon does not have a strong, global magnetic field like Earth does today, but it has localized magnetic regions in its crust—and evidence suggests it had a stronger ancient magnetic field billions of years ago.Sources: NASA – Ancient Moon magnetic shield | Science Advances (via PMC) – When the Moon had a magnetosphere
10. Humans didn’t see the Moon’s far side until 1959, when a Soviet spacecraft photographed it during a flyby.Source: NASA – Moon Facts

There’s still a lot to learn about the Moon, and ongoing lunar science continues to refine what we know—especially about its earliest history, its thin exosphere, and the resources that could support future exploration.

Sources and references

• NASA – Moon Facts
• NASA – The Moon’s Atmosphere (Exosphere)
• NASA – Is There Weather on the Moon?
• NASA – Earth’s Moon (craters and lunar science)
• NASA – Earth and Moon once shared a magnetic shield
• Science Advances (via PMC) – When the Moon had a magnetosphere
• Natural History Museum – Moon factfile (temperature extremes)