Lago Argentino

NASA

Clouds Swimming over Lago Argentino

When an astronaut aboard the International Space Station snapped this photograph of Lago Argentino in Patagonia on December 27, 2025, a school of fish-shaped clouds lingered over the glacial lake’s teal waters. Determining the clouds’ type and origin from the photograph alone is challenging, but several NASA scientists and university researchers offered a theory after reviewing the image. “The lens shape reminds me of lenticular…