This simple text by Franklyn M. Branely introduces the nine planets in our solar system and is complemented by Kevin O'Malley's full-color illustrations, which incorporate some of the newest space photographs available. How hot is it on Venus? Which planet takes longest to orbit the sun? Find out the answers in this updated version of this popular text. Kevin OMalleys often humorous illustrations depict a group of children and an astronomer as they learn all about our solar system. Included are some of the newest space photographs available, as well as many hands-on activities.