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Harmful Bloom in Lake Atitlán, Guatemala
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Published November 28, 2009
A large bloom of cyanobacteria, more commonly known as blue-green algae, spread across Guatemala’s Lake Atitlán in green filaments and strands that are clearly visible in this simulated-natural-color image from November 22, 2009.
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Shadow Cast by Bezymianny Volcano
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Published November 25, 2009
Bezymianny Volcano exhibited a modest plume and dramatic shadow in late November, 2009.
Landslides on Volcan de San Vicente
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Published November 24, 2009
The paths of more than a dozen lahars radiate down the flanks of El Salvador’s Volcáan San Vicente in all directions following torrential rains in November 2009.
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Glacier-capped Mountains in Tibet
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Published November 12, 2009
A range of glacier-capped mountains northwest of Lhasa, Tibet, casts long shadows in this winter-time image from the ASTER sensor on NASA’s Terra satellite.
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Activity at Shiveluch Volcano
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Published October 26, 2009
Acquired October 24, 2009, this false-color image shows volcanic ash stains on the snowy slopes of Shiveluch Volcano.