Kailash Sundaran (left), Devyn Greenberg and Devontae Freeland celebrate the Supreme Court's ruling upholding the Affordable Health Care Act outside the court Thursday.
Alex Wong/Getty Images
Back in 1998, Colleen Maxwell, then a 23-year-old student, smoked outside a San Diego bar, just weeks after California became the the first state in the nation to to ban smoking in most bars and gambling casinos.
Joan C Fahrenthold/AP
Timothy Ray Brown, widely known in research circles as the Berlin patient, was cured of his HIV infection by bone marrow transplants. Now scientists are trying to make sense of the traces of HIV they've found in some cells of his body.