Earth, our home planet, is the only planet known to have an atmosphere containing free oxygen, oceans of water on its surface, and life. Learn more about our home planet.
Saturn is the sixth planet from the Sun and the second-largest in the Solar System. It’s a gas giant with an average radius about nine times that of Earth. Explore the stunningly beautiful rings of Saturn.
Mars is often called the 'Red Planet' because of its reddish appearance. It is a dusty, cold, desert world with a very thin atmosphere. Discover the mysteries of the Red Planet.