Edgar runs WGBH's Curiosity Desk, where he aims to dig a little deeper (and sometimes askew) into topics in the news and looks for answers to questions posed by the world around us. His radio features can be heard onWGBH'sMorning Edition and All Things Considered, and he can also be heard regularly with Jim andMargery on Boston Public Radio. His television features can be seen regularly on Greater Boston. Each Friday, he takes 89.7 listeners back in time with his feature, "This Week in Massachusetts History."