Aiden began Lesson 2 The Solar System. He completed the Lesson 2 Launch "Objects in Our Solar System" where he brainstormed the different parts that make up our solar system. He completed Encounter the Phenomenon "How Do Objects in the Solar System Compare?" and watched the animation "In Our Neighborhood" which animated the concept of astronomical units (AU). He completed the Investigation "Compare the View" which compared telescope images of Jupiter and Saturn from backyard telescopes with space-based telescopes.