The Unknown Ocean: How Tides Work, Storms Form, and Invisible Life Thrives in the Deep Sea

Written by renowned oceanographer Alexander Osadchiev, who has participated in and led more than thirty marine expeditions, this book offers an accessible introduction to the science of the oceans. It explores the many disciplines that make up modern oceanography, including marine biology, physical and chemical oceanography, marine geology, and related fields.
Readers are taken behind the scenes of scientific expeditions at sea to discover how researchers study ocean currents, the chemical composition of seawater, the topography of the seabed, changing coastlines, and the remarkable diversity of marine life. Along the way, the book recounts the history of ocean exploration, memorable voyages, maritime disasters, and record-breaking achievements.
It also examines the profound influence of the oceans on human civilization—from global shipping and food production to climate and geopolitics.
The Unknown Ocean is an invitation to anyone who loves the sea to discover the science behind one of the most vast, beautiful, and still mysterious parts of our planet.

Alexander Osadchiev. The Unknown Ocean: How Tides Work, Storms Form, and Invisible Life Thrives in the Deep Sea. — Moscow: Bombora, 2025.
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