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Earth data, reimagined as art.

By Anupa Kulathunga · Sri Lanka

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© 2026 Orbital Artifacts

Imagery curated from Earth as Art, courtesy of the U.S. Geological Survey. Contains modified Copernicus Sentinel data.

Ghostly Grease Ice — Finland — Landsat 7

Acquired 2003-05-19Landsat 7

OA-059

Ghostly Grease Ice

Finland

Landsat 7

Acquired 2003-05-19

U.S. Geological Survey — Earth as Art 3

Ethereal swirls of grease ice appear turquoise against the midnight blue of the northern Baltic Sea near the Aland Islands (red) between Finland and Sweden. An early stage of sea ice formation, grease ice consists of a viscous mix of tiny ice crystals and resembles an oil slick on the ocean's surface. Wind and currents constantly shape and reshape grease ice into surreal, ghostly patterns.

Curated from

U.S. Geological Survey — Earth as Art 3. Imagery in the public domain; the edit and sequencing are Orbital Artifacts’.

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