The ocean’s depths are a hostile world of crushing pressure, freezing temperatures, and total darkness. Yet divers risk everything to push deeper than ever before. From nitrogen narcosis to the bends, ...

Russian Alexey Molchanov breaks his own 2024 world record in one of the most technically challenging freediving events.

Fitted with electronic tags incorporating a suite of sensors, tracking devices and occasionally tiny cameras, they gather information where human researchers can’t. They have revealed remarkable ...