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The Times of India

Others / The Times of India

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Nasa reveals why the Black Sea changes from dark blue to Turquoise each year

Nasa's PACE satellite captured striking images of the Black Sea's seasonal transformation. Tiny marine organisms called coccolithophores cause the water to appear milky blue. These blooms are visible from space and spread across vast ocean areas. Astronauts also photographed similar turquoise water spreading through the Bosphorus strait. These blooms help scientists monitor ocean ecosystems and carbon movement.

16 Jul 2026 8:30 pm