Robert Duncan poses with his wife, Karen, for New York photographer Iké Udé. Iké Udé/Courtesy of Robert and Karen Duncan hide caption

itoggle caption Iké Udé/Courtesy of Robert and Karen Duncan

Planet: bottom of a glass containing half and half, water, food coloring. Moons: bottom of a glass containing coconut milk, water, food coloring. Stars: salt, cinnamon, baking powder, Tums. Navid Baraty hide caption

itoggle caption Navid Baraty

A boy lies on a mattress on the floor of Redemption Hospital, a holding center for Ebola patients in Monrovia, Liberia. Michel du Cille/The Washington Post/Getty Images hide caption

itoggle caption Michel du Cille/The Washington Post/Getty Images

"Parents enroll their kids here because of our child-friendly toilets," says Eunice, the co-founder of a Kenyan school with latrines designed specially for kids. Frederic Courbet/WSUP/Panos hide caption

itoggle caption Frederic Courbet/WSUP/Panos

At the annual kite festival in Jaipur, India, photographer Stuart Franklin recalls, "I couldn't count the number of people who had kites flying up in the sky from the roofs." Stuart Franklin/Magnum Photo hide caption

itoggle caption Stuart Franklin/Magnum Photo

Raeanne Rubenstein first photographed Johnny Cash at the Ryman Auditorium in Nashville, Tenn. "It was just the most amazing experience," she says. Raeanne Rubenstein hide caption

itoggle caption Raeanne Rubenstein

Zhang Kechun. Under the Abandoned Pier, 2013-2014. Zhang, 34, spent years shooting photos along the Yellow River. Zhang Kechun/Courtesy of Three Shadows +3 Gallery hide caption

itoggle caption Zhang Kechun/Courtesy of Three Shadows +3 Gallery

A large wave on the North Shore of Oahu, Hawaii, sucks sand off of the seafloor and into the wave itself. This photo is the cover image of Clark Little's latest coffee table book, Shorebreak. Clark Little hide caption

itoggle caption Clark Little

James Lee often has to pick up his 100-pound son, Justin. Photographer Andrew Nixon shot this photo in an effort to show how being caregivers affects the aging parents. Andrew Nixon/Capital Public Radio hide caption

itoggle caption Andrew Nixon/Capital Public Radio

Debra Jenson, 2, hanging from a hook in her grandmother's kitchen. "Over the next 35 years, I watched each of my cousins, then my own children and my cousins' children be dangled from that hook. Between the photo and watching it happen to others, this is a powerful 'fake memory' for me." Debra Jenson/Instagram hide caption

itoggle caption Debra Jenson/Instagram

Fon appliqué workers in 1971, Abomey, Republic of Benin. Eliot Elisofon/National Museum of African Art hide caption

itoggle caption Eliot Elisofon/National Museum of African Art