Solar system
Space flight
Choice (Psychology) in children
Decision making in children
Personality in children
Astronomy
Hubble Space Telescope (Spacecraft)
Outer space -- Exploration
Offers a detailed look at the heavenly bodies that make up the solar system, describing the eight planets that orbit the Sun, the moons, asteroids, and dwarf planets in the system, and the spacecrafts humans have created to explore the stars.
