

Scientists probe an Antarctic lake under 3,600 feet of ice, seeking clues about Earth's past while battling extreme conditions. Their work raises questions about human-nature relationships and life's future on our changing planet.
Joel Barker
តួសម្តែង
Timothy Campbell
តួសម្តែង
Brent Christner
តួសម្តែង
Christina Davis
តួសម្តែង