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NASA Reveals the Black Sea’s Stunning Annual Turquoise Transformation

Summary by Sci Tech Daily
NASA captured the Black Sea’s annual turquoise transformation as massive blooms of microscopic plankton turned the water into a dazzling spectacle visible from orbit. The Black Sea lies between Europe and Asia and reaches the Mediterranean Sea through a series of connected waterways. Although its waters are often dark, the sea can undergo a dramatic [...]

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The Black Sea and the Bosphorus, which share a coastal character with our country's Black Sea region, have recently begun to change color. This color change observed in the waters of the Black Sea, normally known for its dark color and rough waves, has attracted the attention of experts. (Black Sea and Bosphorus)

·Türkiye
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Images taken by NASA's PACE satellite and the International Space Station revealed the turquoise color change and natural sea movements in the Black Sea, Marmara Sea, and the Bosphorus, which appear in deep blue and near-black tones for much of the year, during the spring and summer months due to the intense proliferation of microscopic phytoplankton.

·Istanbul, Türkiye
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NASA has released images taken by the PACE satellite and the International Space Station showing the turquoise color change observed in the Black Sea and the Sea of Marmara during the spring and summer months. The color change is caused by the proliferation of phytoplankton called coccolithophores.

On June 22, 2026, NASA's PACE satellite recorded a stunning transformation of the Black Sea, which turned turquoise due to a large bloom of coccolithophores, microscopic organisms that inhabit its waters. This color change is a seasonal phenomenon that occurs in the region during spring and summer. PACE Satellite Observation: The PACE (Plankton, Aerosol, Cloud, Ocean Ecosystem) satellite captured images of the Black Sea with vibrant patterns of …

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Sci Tech Daily broke the news in Encinitas, United States on Sunday, July 19, 2026.
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