Juggler Greg May entertains a gathering at the 25th anniversary celebration for Port Discovery Children’s Museum, along with educators Jessica Preactor, left, and puppeteer Derek Cooper. In honor of its anniversary, Port Discovery unveiled a five-year, $17.5 million master plan on Thursday to update the downtown Baltimore museum, including the addition of a climbable sky garden inside the atrium and a space-themed exhibit with a rover-building station. Story, Page 3