Mass Sorter
Sort celestial bodies from lightest to heaviest — and learn that size has nothing to do with mass.
How to play
Drag a body onto another to swap them, then check the order before time runs out. Hint: Sun > white dwarf > Jupiter > Earth > Moon by mass, and a neutron star outweighs everything per teaspoon. Sort three lineups to win.
Games run entirely in your browser — no sign-in, no data sent to a server.