Families of kidnapped schoolgirls attend a meeting with the local government in the remote town of Chibok, Nigeria. Afolabi Sotunde/Reuters/Landov hide caption

Samuel Habib, seen here at 3 years old, sits in his supportive corner chair in class. Samuel, who has cerebral palsy, is now 14 and is headed to high school. Dan Habib, Samuel's father, is an advocate for inclusion and made a film about his son called Including Samuel. Dan Habib/includingsamuel.com hide caption

Mark Kelly (left) will stay on Earth while his brother, Scott Kelly, spends a year on the International Space Station. NASA will test how the environments affect them differently. NBC NewsWire/NBCU Photo Bank via Getty Images hide caption

Dr. Sampson Davis is an emergency medicine physician in Newark, N.J. When he was 17, he committed a robbery that led to his big break. He's written about his return to the hospital where he was born in his memoir, Living and Dying in Brick City. Rainer Hosch/Courtesy of Sampson Davis hide caption