Hosted by Phil Keoghan, National Geographic's flagship series Explorer investigates global stories of science, nature and culture. It is the longest-running documentary series on cable and recipient of 52 Emmy Awards, 13 Cable ACE awards, the Genesis and Peabody Awards, and twice nominated for Academy Awards. Newly reformatted as a weekly 1-hour magazine series, episodes air in 171 countries in 45 languages and supported by 440 million viewers.