In this Jan. 20, 2015 photo, wooden arrows show the distances to various cities near Chile’s Escudero station on King George Island, Antarctica. Thousands of scientists come to Antarctica for research. There are also non-scientists, chefs, divers, mechanics, janitors and the priest of the worldÌs southernmost Eastern Orthodox Church on top of a rocky hill at the Russian Bellinghausen station. (AP Photo/Natacha Pisarenko)

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