Researchers have invented a powerful new solar-storage molecule that traps sunlight like a rechargeable battery and releases it later as heat. Credit: AI/ScienceDaily.com As solar panels lose their ability to generate electricity after sunset, one major challenge remains for renewable energy: how to store solar power for use later, whether during cloudy weather or overnight. Researchers at UC Santa Barbara believe they may have found an answer that avoids the need for massive battery systems or