The NewsWorks team brings citywide coverage of the first day of school following a traumatic summer that saw widespread layoffs and school closures.  Education reporter Kevin McCorry reports while the first day went smoothly, there's a full year of school ahead with shoestring staffs at many schools, and a teacher contract dispute to settle.  Dave Heller speaks with Lisa Schenke, whose son's suicide served as a catalyst prompting her to help others with children contemplating suicide.  Franklin Institute Chief Astronomer Derrick Pitts joins us for Skytalk.  And Chris Satullo argues despite an often seemingly pessimistic disposition, Philadelphians actually are pursuing happiness.