Star Distance from Earth Game — Higher or Lower?
Proxima 4.2 light years. Higher-or-lower star distance quiz across 30 famous stars.
Space
Galaxy Size Game — Higher or Lower?
Milky Way 100k ly. Higher-or-lower galaxy diameter quiz across 30 known galaxies.
Planet Orbital Period Game — Higher or Lower?
Mercury 88 days. Pluto 248 years. Higher-or-lower planet orbital period quiz across 30 worlds.
Planet Diameter Game — Higher or Lower?
Jupiter is 11x wider than Earth. Pluto isn’t even half. Higher-or-lower planet diameter quiz across 30 worlds.