'Martian technology' to keep solar panels dust-free

'Martian technology' to keep solar panels dust-free: "The current market size for solar panels is about $24 billion, Mazumder said. 'Less than 0.04 percent of global energy production is derived from solar panels, but if only four percent of the world's deserts were dedicated to solar power harvesting, our energy needs could be completely met worldwide. This self-cleaning technology can play an important role.'"