Jamaican sprinter Usain Bolt, right, shakes hands with Japanese runners on Aug. 19 at the Olympic Games in Rio de Janeiro. A new study finds surprising shared sound Read More »
Audience members pray at the National Prayer Breakfast in Washington, an annual event attended by the president and many members of Congress and other guests. Read More »
Bill Nye and Mike Puzio demonstrate the special high-five they developed to honor NASA's OSIRIS-REx asteroid-sampling mission. Read More »
Muslim pilgrims join one of the hajj rituals on Mount Arafat near Mecca early on Sunday. Read More »