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File:Phytoplankton bloom in the Baltic Sea (July 3, 2001).jpg

PD image; from NASA's Earth Observatory; http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=5020

  • source: http://visibleearth.nasa.gov/view_detail.php?id=1844
Public domain This file is in the public domain because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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