Could there have been life on Mars? Learn about the red planet and find out! --Page 4 of cover.

Tracing the evolution of humankind's pursuit of astronomical knowledge, this resource looks deep into the furthest reaches of space. Children will follow along as the realization that the Earth is not at the center of the universe leads all the way up to recent telescopic proof of planets orbiting stars outside the solar system. In addition to its engaging history, this book contains 21 hands-on projects to further explore the subjects discussed....

"What if tornadoes could be stopped or slowed down? In this addition to the critically-acclaimed Scientist in the Field series, scientist Robin Tanamachi and her team are trying to come up with a way to predict tornadoes with even greater accuracy, and save countless lives across America's heartland."--