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 hide caption

itoggle caption Alex Wong/Getty Images

San Juan Creek meets the Pacific Ocean at Doheny State Beach in Dana Point, Calif. The poor water quality off Doheny State Beach put in a list of worst beaches in the U.S. Reed Saxon/AP hide caption

itoggle caption Reed Saxon/AP

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 hide caption

itoggle caption 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. Richard Knox/NPR hide caption

itoggle caption Richard Knox/NPR

Susan Backlinie swims as the great white shark rises toward her in publicity art for the 1975 film Jaws. Universal/Michael Ochs Archives/Getty Images hide caption

itoggle caption Universal/Michael Ochs Archives/Getty Images

A woman pours two tablets into her hand from a pill bottle. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Unrefrigerated brains in preserving solution are stacked high on shelves at the Harvard Brain Tissue Resource Center at McLean Hospital. Olin College of Engineering/Flickr hide caption

itoggle caption Olin College of Engineering/Flickr

Before the colonoscopy begins, it pays to ask your doctor some pointed questions. Sebastian Schroeder/iStockphoto.com hide caption

itoggle caption Sebastian Schroeder/iStockphoto.com