"Guatemala's Lake Atitlán, surrounded by volcanoes and Maya settlements, has been taken over by a massive bloom of cyanobacteria (blue-green algae). I'll be traveling to a K'iche' Maya village not far from this place in a couple of weeks. The image comes from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite."
- Steven Perez
from Bookmarklet