This photo shows the USS Glacier, an icebreaker, during the 1956 Antarctic winter. German scientists in Antarctica recently harvested produce, grown in a greenhouse, as the temperature outside dipped to 4 degrees below zero. / Photo courtesy U.S. Navy

In one of the most inhospitable places on Earth, scientists have harvested “their first crop of vegetables grown without earth, daylight or pesticides as part of a project designed to help astronauts cultivate fresh food on other planets.”

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