This MacArthur Fellow won the Pulitzer Prize along with a team of New York Times journalists for their coverage of the war in Afghanistan in 2009.
One of the first female staff photographers at National Geographic, Cobb found that being a woman in what was largely still a man's field had its advantages.
Celebrated for emphasizing the things that unite rather than divide us, Griffiths has traveled to more than 100 countries, telling the stories of us.
Nominated for two Emmy Awards for her work as a field correspondent Nat Geo's Explorer TV series, Mayor is now a featured host on Nat Geo WILD.
Celebrated for being the first woman to summit Everest and its neighbor peak Lhotse in a single 24-hr period, Nelson is not your average adventurer.