AdvertisementHelp Wanted: Unlikely Geniuses To Solve Public Health ProblemsOctober 09, 2014Linda PoonfacebookEmailAstrophysicist Szabolcs Marka has a radical idea: Use light as a barrier between mosquitoes and humans. He was awarded a $100,000 Grand Challenge grant by the Bill and Melinda Gates Foundation to see if the idea really works. (Courtesy of the Gates Foundation)