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A telescope on a tripod surrounded by a ringed planet, a cratered moon, a star chart, and a rocky asteroid.

Think you know the neighborhood? Crush this planet trivia & claim your dominance

Solar System

ZapStacks

8

Zaps

217

Mercury’s core is shrinking and Venus is a literal pressure cooker. You think you know the neighborhood, but can you name the gas giant that could float in a bathtub? Stop staring at the stars and prove you can handle the high stakes of our own backyard. Clock is ticking.