Above: These maps show where auroras were sighted in the early hours of Sept. 2, 1859. Source: González-Esparza, J. A., & Cuevas-Cardona, M. C. (2018). Observations of low-latitude red aurora in Mexico during the 1859 Carrington geomagnetic storm. Space Weather, 16, 593–600. https://doi.org/10.1029/2017SW001789
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