Written for ages 4 to 8, this book is science fiction for youngsters. Two brothers, the grandsons and sons of the co-authors, take a trip to the two ringed planets in our outer solar system. Equal parts dream and pure imagination, this story blasts off in a toy spaceship turned real. Readers will explore a moon of Saturn, collect samples, make Popsicles, take pictures, and invent new technology. Our adventurers also learn about family and how much we miss one another when we're away on a long trip. Hidden inside the illustrations is a special little creature, an alien friend inspired by children's imaginary friends, who tags along for the journey.