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At-100degreesF,youcanburnupto5,000caloriesaday,andwithwinteratlessthan1%humidity,yourbodywilllosewaterjustbreathing.ThisisAntarctica,whereclose-knitcommunitiesofscientists,engineers,andhardenedfieldvetshaveforgedanexistenceunlikeanythingonourplanet,fightingbrutalconditionstoconductcrucialscience.