Only a Tiny Fraction of Deep Seafloor Mapped Over Seven Decades

Los Angeles CA (SPX) May 12, 2025

In a significant new study published in Science Advances, researchers from the Ocean Discovery League have revealed that less than 0.001% of the deep seafloor has been visually observed in over 70 years of exploration. Despite the deep ocean covering approximately 66% of Earth's surface, this critical region remains largely uncharted. The study, titled "How Little We've Seen: A Visual Cove