Photo: Attendees to the Carnegie Science Center’s new exhibit, titled Mars: The Next Giant Leap, use joysticks to control Mars rovers. The exhibit was unveiled at a press event on Nov. 17, and opened to the public on Nov. 19. A focus group made up of Northsiders helped inform the design of the exhib...

By Sean P. Ray | Managing Editor While teachers are the school personnel students most often interact with, principals also play a vital role in the education of students. Pittsburgh Public Schools in the Northside received three new principals this year, each representing a possible change in direc...