Barkatullah smiles and rests on a crutch and grips his walker during a physical therapy session at Emergency War and Trauma Hospital in Kabul. The 13-year-old lost his right arm and leg in an explosion. He practices standing on the walker 30 seconds at a time.
Ivan Armando Flores for NPR
Didier Kassai uses comics to "transmit a message." His father opposed to a career in art until Kassai began earning money for his drawings. Here he sits in his office in Bangui, capital of the Central African Republic.
Cassandra Vinograd for NPR
Consolata Aganga goes door-to-door as a community health worker, a demanding volunteer job. "It is God who gives me the strength," she says. She is also a small-scale farmer, growing vegetables for her family.
A mosquito's antenna responds to odors. Scientists are trying to figure out how the malaria parasite might trigger a change in body odor that draws in mosquitoes that carry the disease, like the Anopheles skeeter pictured above.
Winners of the 2018 Skoll Awards for Social Entrepreneurship (from left) are Jennifer Pahlka, Harish Hande, Jess Ladd, Lesley Marincola, Anushka Ratnayake and Barbara Pierce Bush.
David Fisher/Skoll Foundation
Samuel Senessie, 25, at the site of last year's mudslide. He lost five members of his family and his home. He says he has not received the government support to which he should be entitled.
Tommy Trenchard for NPR
See that little brown critter and that little white critter? They're goats stuck on a bridge in western Pennsylvania. The white goat is facing in the wrong direction to walk off the beam, about 100 feet high, and return to solid ground.
Todd Tilson/PA Turnpike Commission