National Geographic's Pristine Seas team has unveiled the world's largest Pavona clavus coral off the Solomon Islands coast, stretching a whopping 34m wide, 32m long, and 6m tall—yes, longer than a blue whale and visible from space! Estimated to be 300-500 years old, this ancient marvel supports a bustling marine metropolis. While it looks healthy, scientists caution it's still at risk from global warming and human activities, making its protection more crucial than ever.