A breathtaking astronaut photo reveals El Salvador’s Lake Coatepeque—an ancient volcanic crater lake that sometimes mysteriously turns brilliant turquoise. Lake Coatepeque, located just inland from El Salvador’s Pacific coastline, stands out for its vivid blue water that fills part of a volcanic caldera bearing the same name. On February 10, 2026, an astronaut aboard the […]Earth,Astronaut,Geography,NASA,NASA Earth Observatory#Brilliant #Blue #Lake #Ancient #Volcano #Stuns #Space1773123074
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