Holly Otterbein looks at what’s driving Philadelphia’s once again soaring prison population. Dave Davies profiles the man who may be the deciding vote on two important Pennsylvania Supreme Court cases: Ron Castille. Kimberly Haas talks to doctors about recent cases of whooping cough in our region. Franklin Institute Chief Astronomer Derrick Pitts joins us for a look at the heavens. And Chris Satullo argues the concerns of national politics shouldn’t be applied locally.