The Greatest Spaceships Made From Scrap

With the space shuttle program about to be retired, we need a new class of crewed ships for space exploration. But Congress may never cough up the money to build them. Luckily, science fiction teaches us that anything can be a spaceship: an old airplane, a World War II battleship, a fairground ride... or even some… » 2/15/08 1:30pm 2/15/08 1:30pm