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Home Artist’s rendering of TDRS-1, which provided communications services to the Amundsen-Scott South Pole Station until it was retired in June 2010. (NASA) Artist’s rendering of TDRS-1, which provided communications services to the Amundsen-Scott South Pole Station until it was retired in June 2010. (NASA)

Artist’s rendering of TDRS-1, which provided communications services to the Amundsen-Scott South Pole Station until it was retired in June 2010. (NASA)

Artist’s rendering of TDRS-1, which provided communications services to the Amundsen-Scott South Pole Station until it was retired in June 2010. (NASA)

Artist’s rendering of TDRS-1, which provided communications services to the Amundsen-Scott South Pole Station until it was retired in June 2010. (NASA)

SPTR’s hardware was replaced in 2009 with upgraded National Science Foundation equipment, shown here, and renamed SPTR-2. (National Science Foundation)