The Big IdeaWatch the planets rotate just like they do in space with eight motorized planets and a glowing light-up sun. Turn off the lights and project a star show on the ceiling for the ultimate in-room space experience!Psst...They're Learning! Teaches the fundamentals of planetary rotation around the sun Encourages interest in the solar system Promotes a love of science and exploration Perfect for STEM learning Cut to the Chase From an award-winning line of science toys that will launch a lifelong love of space exploration and introduce key astronomy concepts and terminology! Includes a brightly lit sun and 8 rotating planets on a sturdy base Includes star dome, which projects constellations on the walls and ceiling Night-light feature with auto shut-off Inner and outer planets rotate at different speeds for more realistic motion Requires 4 AA batteries (not included)