Mark Eichmann reports on the announced closure of a Delaware steel mill. Chris Satullo argues the shutdown is more than just typical Washington dysfunction. Aaron Moselle previews the opening of a photo exhibit that documents reaction to the closure of 24 schools in Philadelphia this summer. Peter Crimmins visits an exhibit in New Jersey, once a center of avant-garde art. Howard Shapiro reviews the Arden Theater production of “Parade.” And Franklin Institute Chief Astronomer Derrick Pitts joins us for some weekly stargazing.