Researchers have found a blue hole they say is the deepest in the world—and they’ve yet to find where it bottoms out. The formation is the Taam Ja’ Blue Hole in Mexico’s Chetumal Bay, and it has so ...

Scientists have yet to reach the bottom of the Taam Ja' Blue Hole in Mexico's Chetumal Bay, which new measurements hint could be connected to a labyrinth of submarine caves and tunnels. When you ...

Belize's Great Blue Hole is one of Earth's most mysterious features. Anyone peering into the 125 metre (410ft) deep pit will wonder what secrets – and stories – lie beneath. Now, scientists have ...

The Great Blue Hole off the coast of Belize has been photographed from space, with an astronaut onboard the International Space Station taking an image of it and the Lighthouse Reef atoll it sits in.

Blue holes, like the Great Blue Hole in Belize, are vast caverns that descend into the seafloor. Sediment accumulates at the bottom of a blue hole, giving researchers a way to gauge historical ...

In a new mission, the National Oceanic and Atmospheric Administration (NOAA) is going deep underwater. And they aren't stopping at the seafloor. Blue holes take the mysteries of the deep sea even ...

Blue holes are worldwide attractions for amateur and professional divers alike. Here are the world's five best blue holes. Snorklers swimming over Dean´s Blue Hole with a depth of 202 meters on June ...