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Alan Bennett, Les Dawson ... John Culshaw speculates on the stars of a possible film about the Antarctic stations. These and staff number just 43, and, as Europe basks in midsummer heat, are shivering in temperatures as low as minus 55.4 Celsius.

Each year, 主播大秀 World Service broadcasts a programme of 'audio postcards' sent in by family and friends of the crew and staff.

Image: Scientists and staff at the Antarctic station. Courtesy of the British Antarctic Survey.