Dozens of children in Nome become sick with diphtheria. Without antitoxin serum, they will perish - and the closest supply is 650 miles away! The only way to get the serum to Nome is by sled, but can the dogs deliver it in time? Heading bravely into a brutal blizzard, Balto leads the race for life.Illus. in full color.

    If you were the moon, what would you do? You'd spin like a twilight ballerina and play dodgeball with space rocks! And more.

    A. Rey’s passion for astronomy evident on every page.Second edition updates concentrate on the planetary and solar system information in the latter part of the book. Facts and figures for each planet have been revised, and new scientific information has been added, such as Pluto’s reclassification as a dwarf planet.