Moon
Our Moon · 384,400 km from Earth
Earth's only natural moon. With no air to hold heat, the ground swings from freezing night to baking day, and the footprints left by Apollo astronauts (1969–1972) are still there.
▶ Land on MoonFree · plays in your browser
Gravity1.62 m/s²0.17× Earth measured
Size0.27× Earth (1,737 km radius)
Mass0.012× Earth
Temperature−173 °C at night to 127 °C in sunlight
AirNone (exosphere)surface pressure almost none
One day29.5 Earth days from one sunrise to the next
One yearOrbits Earth every 27.3 days
Walking on Moon
- A 70 kg explorer would feel like 12 kg.
- A jump that clears 50 cm on Earth would reach about 303 cm.
- Each jump floats for seconds before you drift back down.
- With almost no air, a hammer and a feather fall side by side, and sound cannot travel.
Landmarks in the game
- Tycho-style crater: Craters like Tycho (85 km wide) come from impacts. With no air or water to erode them, they last billions of years.
- Small impact crater: Most lunar craters are small. The Moon’s surface is covered in a fine, sharp dust called regolith.
Real maps, real physics. Earth, the Moon and Mars use real NASA surface maps. Gravity, temperature and air pressure are the real values, and they change how you move, what you hear and how long your suit lasts.
Play Moon