It's 2-in-1 astronomy fun! Set up and observe the rotating solar system with this all-new version of our best seller. Designed for ages 8-12 years, this set includes: a base with 8 rotating planets and LED light-up sun; Constellation dome turns any ceiling into a planetarium; Night-light feature with auto shut-off; Multilingual guidebook with fun planetary facts and classroom activities; Requires 4 AA batteries (not included). Supports STEM: Observe and explore planet rotation and planet properties.