Special polymers that expand when heated allow a solar panel to unfurl when it’s exposed to sunlight, which could be useful for solar-powered spacecraft
Source:
https://www.newscientist.com/article/2208408-a-solar-panel-that-unfolds-in-sunlight-could-power-spacecraft/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home