Ascent Solar's thin and flexible sun-catching film is set to continue out-of-this-world testing on NASA craft this year. It is part of an ongoing study into optimizing how the renewable energy source can power small vessels, among other scientific breakthroughs, according to a story from Electrek. NASA is using the film as part of the Lightweight Integrated Solar Array project, which is also geared to develop 'low-cost power for spacecraft'