Polar explorer Henry Worsley (right) died after breaking off an attempt to cross the Antarctic landmass unaided. He's seen here with Britain's Prince William in October, shortly before setting out on his journey. John Stillwell/WPA Pool/Getty Images hide caption

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When we asked you for memories of David Bowie songs, many happened to appear on the crucial Changesonebowie compilation, which sits in the NPR library. Niki Walker/NPR hide caption

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