For the debut episode of The Curiosity Desk, Edgar B. Herwick III is joined by canine friends and inquisitive Bostonians in Paul Revere Park in Charlestown. With the help of an astronomer, Herwick looks to the heavens to learn why those late summer days are called the dog days of summer. In GBH’s Curiosity Desk, Edgar B. Herwick III answers your questions and examines some of the everyday mysteries hiding in plain sight. Check back for new episodes every Wednesday. Got a question? Ask Edgar! www.wgbh.org/news/the-curiosity-desk