The seventh planet from the sun, Uranus is known for its blue-green color and tilted axis, which makes it look like it’s spinning on its side. What causes these distinctive features? This engaging, easy-to-follow resource gives readers insight into this planet, starting with the fascinating story of its discovery in 1781. Readers will learn the latest insights gained from satellite images, that explain its features, conditions, rings, and moons. Sidebars define challenging vocabulary words and pose thought-provoking questions to stimulate critical thinking about the universe.