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The United States of America, also known as the United States, the U.S., the U.S.A., the U.S. of A, the States, and America, is a country in North America. A federal republic, the United States shares land borders with Canada and Mexico, and extends from the Atlantic Ocean to the Pacific Ocean. Its capital is Washington, D.C.
The present-day continental United States has been inhabited for at least 15,000 years by Native Americans. After 16th-century European exploration and settlement, the English established new colonies, and gained control of others, in the eastern portion of the continent in the 17th and early 18th centuries. On 4 July 1776, at war with Britain over fair governance, thirteen of these colonies declared their independence; in 1783, the war ended in British acceptance of the new nation. Since then, the country has more than quadrupled in size: it now consists of 50 states, one federal district, and a number of overseas territories.
At over 3.7 million square miles (over 9.1 million km²), the U.S. is the third largest country by area. It is also the world's third most populous nation, with nearly 300 million people.
More on [ United States ]
NASA History Office - Current events; index of sites covering history of major aeronautic and astronautic programs, key NASA and NACA (1915-1958) officials, policy documents, statistics, timeline of air and space achievements; publications; links to other resources.
Meta Description: [ NASA History ]
Shoot for the Moon! - Outlines the highlights of the Mercury, Gemini and Apollo Space Programs from 1961 to 1972. Includes a brief bibliography.
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A Field Guide to American Spacecraft - Offers guides to locations of over 200 artifacts of USA's space program including X-15's and rocket boosters.
Meta Description: [ An information and location guide to the spacecraft used in the American conquest of space. Includes all production spacecraft, flown and unflown, as well as boilerplates, trainers, mockups and models. ]
Cape Canaveral Air Force Station Virtual Tour - Descriptions and photographs of the launch complexes and vehicles.
Highlights of the First 100 American Human Space Flights - A selective chronology of historically important manned space missions from 1961 to 1995. Some flights not covered.
John Glenn: Three Orbits to History - Presents a brief multimedia history of John Glenn's Mercury flight, the first American mission into Earth orbit. Discusses the training and technology of the Mercury Program and the events of Glenn's space flight.
Meta Description: [ As the Cold War reached into space, America found itself woefully behind the Soviet Union. Already, Sputnik, Gagarin, and others had been aloft, even orbited the earth. NASA, however, lagged behind. This is the story of John Glenn, the first American to orbit the earth. In one flight, we caught u... ]
NASA Historical Archive for Manned Missions - Space history and information about NASA's manned missions. Mission descriptions, photos and videos of each of USA's manned space exploration missions.
Research in NASA History: A Guide to the NASA History Program - Book providing details of the historical reference collections at NASA's Headquarters and ten Field Centers. [PDF]
Robert Hutchings Goddard - A biography of one of America's leading pioneers in rocketry. Includes his contributions to the development liquid and solid fuel rockets and their application to military and civilian purposes.
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The 6555th: Missile and Space Launches Through 1970 - A detailed history of the United States Air Forces' 6555th Aerospace Test Wing at Patrick Air Force Base in Florida. Discusses the role of the 6555th in military missile tests and civilian launch operations at Cape Canaveral. Includes detailed references.
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The Cape: Military Space Operations 1971-1992. - A history of 6555th Aerospace Test Wing's role in missile and space launches at Cape Canaveral Air Force Station from 1971 to 1992. Solidly researched with an excellent citations.
The History of Space Flight - Includes an index on US American space programs from Project Mercury to the Space Shuttle. Provides a concise summary of each flight and a mission patch. Also has links related to the history of rocketry, important figures in space travel, and prominent NASA centers.
The Ultimate Space Plane - Space History - Articles related to Mercury, Gemini, Apollo, Skylab and Apollo-Soyuz space flights. Also covers past, present, and proposed future missions of the Shuttle.
Meta Description: [ Space history and NASA space history from aviation and rocket pioneers to Mercury, Gemini, Apollo and space shuttle flights ]
Where No Man Has Gone Before - W.D. Compton provides a solidly researched and authoritative history of the engineering and scientific accomplishments of the Apollo program from its inception to its last mission. Includes useful appendices and an extensive bibliography.
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