1728-1779. English naval explorer. After surveying the St Lawrence 1759, he made three voyages: 1769-71 to Tahiti, New Zealand, and Australia; 1772-75 to the South Pacific; and 1776-79 to the South and North Pacific, attempting to find the Northwest Passage and charting the Siberian coast. He was killed in Hawaii. In 1768 Cook was given command of an expedition to the South Pacific to witness Venus eclipsing the sun. He sailed in the Endeavour with Joseph Banks and other scientists, reaching Tahiti Apr 1769. He then sailed around New Zealand and made a detailed survey of the E coast of Australia, naming New South Wales and Botany Bay. He returned to England 12 June 1771. Now a commander, Cook set out 1772 with the Resolution and Adventure to search for the Southern Continent. The location of Easter Island was determined, and the Marquesas and Tonga Islands plotted. He also went to New Caledonia and Norfolk Island. Cook returned 25 July 1775, having sailed 60,000 mi in three years. On 25 June 1776, he began his third and last voyage with the Resolution and Discovery. On the way to New Zealand, he visited several of the Cook or Hervey Islands and revisited the Hawaiian or Sandwich Islands.