The Great Barrier Reef is located off the coast of Australia.

The world's longest coral reef system, the Great Barrier Reef, is visible from space.

The Pacific Ocean is larger than all of Earth's landmasses combined.

There are deep ocean trenches deeper than Mount Everest is tall.

NOAA's exploration of deep ocean vents has discovered ecosystems entirely dependent on chemosynthesis rather than sunlight.

The fangtooth fish has some of the largest teeth relative to body size in the ocean.

The Arctic Ocean may be ice-free in summer within decades, creating new shipping routes and accelerating warming.

Hydrothermal vents support unique ecosystems without sunlight.

Sea turtles have existed for over 100 million years.