So near and yet so far

Henry Worsley died in a Chilean hospital of peritonitis after being airlifted from Antartica, 30 miles short of what would have been the first solo unaided crossing of the continent. How does this compare with Britain’s other heroic failures?
— Scott and his two surviving companions died 11 miles short of their one tonne food depot, but were still 140 miles short of their journey’s end, having travelled just over 700 miles from the South Pole.