The universe is generally considered to be very far away. However, it is assumed to be only 100 kilometers above the Earth where the atmosphere almost disappears and outer space begins. In this book, a child accidentally lets go of a balloon and as it travels up into the air, the universe is pictured step by step from the ground to outer space.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.