The number of confirmed moons of Saturn
The number of vehicles with wheels that have driven on the Moon
The number of millimetres further away the Moon gets, every year
The number of people who have flown to the Moon, but never walked on it
Distance in light years to WASP-12b, an exoplanet that scientists think might have a moon
Did you know?
An exoplanet is a planet outside our solar system.
This column first appeared in Double Helix magazine. If you’re after more maths facts for kids, subscribe today!