Bonilla observation
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On August 12, 1883, the astronomer José Bonilla reported that he saw more than 300 dark, unidentified objects crossing before the Sun while observing sunspot activity at Zacatecas Observatory in Mexico.[1] He was able to take several photographs, exposing wet plates at 1/100 second. These represent the earliest photos of an unidentified flying object.[2] It was later suggested that the objects were actually high flying geese,[citation needed] while some ufological literature interpreted the objects as either alien spacecraft or an unsolved mystery.[citation needed]
In 2011, researchers from the National Autonomous University of Mexico suggested that the unidentified objects may have been fragments of a billion-ton comet passing within a few hundred kilometers of Earth.[3][4]
