World explorers

Describes the history of the expeditions of Admiral Robert Peary, Charles Francis Hall, Fridtjof Nansen, and others to reach the North Pole.

Describes the journey of Charles Wilkes as he led a group of American seamen through the South Pacific and became the first to cite Antarctica as a separate continent.

Examines the early days of space exploration, with biographical information on the first men and women to go into space.

Chronicles the "Apollo" missions to the moon, discussing the preparation for the missions, the challenges the astronauts faced, and the achievements of NASA in the 1960s and 1970s.

Examines the life and times of the German scientist and naturalist whose nineteenth-century explorations of Mexico and the South American interior furthered scientific understanding of the natural world.

Discusses the proposed manned space flight to Mars and what might be found there.

Examines the life and travels of the medieval explorer.

Describes the journey through the Amazon Basin made by Orellana and Pizarro in the early sixteenth century. Also discusses the Inca and the conquest of South America by the Spanish.

A biography of the nineteenth-century soldier, politician, and explorer whose many expeditions helped open up the western territories to settlers.

An account of the 1804-1806 Lewis and Clark Expedition which explored the unknown Louisiana Purchase territory and the Pacific Northwest from St. Louis to the mouth of the Columbia River.