Danny Dunn and the Anti-Gravity Paint
Jay Williams
 Through a mishap in Professor Bulfinch's laboratory, Danny accidentally creates an anti-gravity paint. In time, the government constructs a spaceship which uses the paint as a propulsion system. The spaceship is launched prematurely after Danny and Joe follow Professor Bulfinch and Dr. Grimes on a tour of the ship. A mechanical failure dooms the four to a trip out of the Solar System unless they can repair the ship. Should they fail in this, they will drift too far from the Sun and freeze to death.