Explorers on all 7 continents came together with public participants to celebrate exploration on this epic Google+ Hangout, 125 years to the day after the idea of the National Geographic Society was born. Watch ocean explorer Robert Ballard, primatologist Jane Goodall, cave diver Kenny Broad, Crittercam engineers Greg Marshall and Kyler Abernathy in Antarctica, wildlife conservationist Paula Kahumbu in Kenya, archaeologist Cecilia Mauricio in Peru, paleontologist Mike Archer in Australia, conflict resolution specialist Aziz Abu Sarah in Israel, biologist Krithi Karanth in India, and research engineer Albert Lin in California join NG Weekend host Boyd Matson for a conversation celebrating a new age of exploration.