NASA is considering the use of inflatable modules for the International Space Station (ISS). This idea has been proposed as early as in the 1960s, but it has never been put to use in space until Bigelow Aerospace took over the idea and developed two working prototypes and tested them in space. The main advantage of inflatable space stations is the fact that they are much lighter and take up less space at launch, which greatly cuts the costs of the whole endeavor.
Artist impression of an...