Gr 5-7-Two titles that stimulate the imagination while remaining grounded in reality as any good scientific investigation should do. Cosmic Journeys explores such questions as: Are long space voyages to other solar systems likely? What about time travel? What are black holes and wormholes and can they be useful in space travel? Do parallel universes and other dimensions exist? "Reality Check" charts appear frequently to give some idea of the probability of the theories presented. They are divided into four categories: "Feasible Technology," "Science Is Sound," "Affordable," and "How Soon?" with likelihood indicated by symbols of green or red lights. Unfortunately, "How Soon?" is the only one that mentions a time frame for the green lights. Superhumans looks at human development and improvement through technology.