← Browse all games
Moon Hunt
Guess a moon of the Solar System in this free daily astronomy quiz. Compare its parent world, radius and density to identify the mystery moon.
The answer pool includes 26 moons, from small satellites to giant worlds. Radius is half the diameter; density is measured in grams per cubic centimetre. Higher and lower clues help you compare sizes and composition, not the moon's current sky position.
Setting today’s puzzle to your local time…
If this does not advance, check your computer’s time zone and enable JavaScript.
A new puzzle arrives at midnight in your local time zone. Missed a day? The archive has today and the previous six days, free to play. Up to 6 Attempts