
On September 22, 2026
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NOVA · S30E15 — Deep Sea Invasion
Synopsis
In 1989, while diving off the coast of southern France, marine biologist Alexandre Meinesz encountered a breathtaking, yet unsettling, sight: a thick expanse of verdant fronds swaying around him across the seabed. Initially bewildered by the phenomenon, he soon made the disturbing discovery that a tropical algae had established itself in the Mediterranean's cold waters, devastating native marine life in its wake. "Deep Sea Invasion" chronicles Meinesz's scientific pursuit to trace the origin of



