EVB2942264: Star Trek television cast members at the roll out of the Space shuttle prototype Enterprise, 1976 / Bridgeman Images

EVB2942288: Space shuttle Challenger disaster. Six image sequence of the Challenger explosion in progress from 58.8 to 109.6 seconds after launch. Jan. 28, 1986 / Bridgeman Images

EVB2942306: Skylab 4 Astronaut Ed Gibson preparing his meal aboard the Skylab space station. Skylab 4 mission lasted 84 days, testing the effects of prolonged zero gravity. Nov. 16, 1973 -Feb. 8, 1974 / Bridgeman Images

EVB2942312: Iranians demonstrating in Tehran in support of the Shah in 1959 / Bridgeman Images

EVB2942327: Hillary Clinton, US Secretary of State, speaking at George Washington University, on August 16, 2011 / Bridgeman Images

EVB2942405: Mosaic image of Mars taken by NASA's Mars Exploration Rover 'Opportunity'. January 2012 / Bridgeman Images

EVB2942441: Eisenhower's First Inauguration. Chief Justice Frederick Vinson administering the oath of office to Dwight D. Eisenhower on the east portico of the U.S. Capitol, January 20, 1953 / Bridgeman Images

EVB2942450: First Lady Mamie Eisenhower. c. 1960 / Bridgeman Images

EVB2941998: Billy Graham was a prominent Christian evangelist. His middle of the road politics fostered his visits to many sitting US presidents from Harry S. Truman to Barack Obama. April 11, 1966 / Bridgeman Images

EVB2942013: African American men at a Black Muslim demonstration carrying placards with portrait of Patrice Lumumba, Premier of Congo. Lumumba was executed on Jan. 17, 1961. Both the US and Belgian were acting to kill Lumumba, with the Belgians succeeding assisted by Congolese partners / Bridgeman Images

EVB2942052: President Kennedy speaks at 'Bean Feed' on Oct. 6, 1962. Minnesota's 'Democratic-Farmer-Labor party'(DFL) held 'Bean Feed' gatherings across the state where voter could meet politicians. At lower left is future Vice President, the Minnesota Attorney General, Walter Mondale / Bridgeman Images

EVB2942088: Letitia Baldrige, First Lady Jacqueline Kennedy's Social Secretary. Their association lasted until Mrs. Kennedy's 1994 death, when Baldrige planned her funeral. 1961 / Bridgeman Images

EVB2942106: A relaxed President John Kennedy enjoying the America's Cup Race off Newport, Rhode Island, on Sept. 15, 1962 / Bridgeman Images

EVB2942115: Wernher von Braun explains the Saturn Launch System to President John Kennedy. Nov. 16, 1963 / Bridgeman Images

EVB2942154: International Space Station in 1999. Photo taken from the Space Shuttle Discovery on June 3, 1999 / Bridgeman Images

EVB2942166: International Space Station in 2007. Photo taken from a departing Space Shuttle Atlantis. June 19, 2007 / Bridgeman Images

EVB2942172: Space Shuttle Endeavor docked to the International Space Station. Photo taken from a departing Soyuz spacecraft, whose crew completed a 159 day space mission. May 23, 2011 / Bridgeman Images

EVB2942190: Soyuz spacecraft launch at the Russian Baikonur complex in Kazakhstan. The Soyuz spacecraft docked with a US Apollo capsule to test means for international rescue missions and future collaboration on manned spaceflights. July 15, 1975 / Bridgeman Images

EVB2942211: Commander Eileen Collins (right front, waving) with Space Shuttle Mission 114 crew en route to the Launch Pad. July 2005 / Bridgeman Images

EVB2942238: Apollo 12 Astronaut Alan Bean deploys scientific experiments on the lunar surface. Nov. 19, 1969 / Bridgeman Images

EVB2942262: Space shuttle Atlantis re-entry flight path resembles a bean sprout against clouds and city lights. Photograph by the Expedition 28 crew in the International Space Station. May 23, 2011 / Bridgeman Images

EVB2942298: Launch of Skylab on a two-stage Saturn V missile. The unmanned launch carried the Worlds first space station into Earth Orbit. May 14, 1973 / Bridgeman Images

EVB2942340: Yolande Betbeze, Alabama's entry won the 1951 Miss America beauty contest. After winning the title she refused to wear a bathing suit at public events. She later marched for civil rights, took part in Woolworth sit-ins, and marched in a feminist demonstration against Miss America pageant / Bridgeman Images

EVB2942352: Technicians in a nuclear reactor control room at NASA's Plum Brook Station in Sandusky, Ohio. 1959 / Bridgeman Images

EVB2942376: The B53 was a high-yield bunker buster thermonuclear weapon developed by the United States during the 1960s Cold War. Over 300 were produced, each with a with 9 megatons yield. The stockpile's dismantlement was completed in 2011 / Bridgeman Images

EVB2942385: A nuclear engineer is protected from radiation by a fifty-two inch thick oil-filled, glass window as he operates a robotic arm. NASA's Plum Brook Station in Sandusky, Ohio, 1961 / Bridgeman Images

EVB2942442: Eisenhower's First Inauguration. President Dwight Eisenhower accepts the cheers of the crowd after his inauguration, with Harry Truman and Senator Styles Bridges looking on. January 20, 1953 / Bridgeman Images

EVB2942454: Benjamin J. Davis speaking at the Negro Freedom Rally, Madison Square Garden, New York City. June 25, 1945. He was an admitted communist who represented Harlem on the New York City Council from 1943-1949 / Bridgeman Images

EVB2942466: Senator Joseph McCarthy, leaving Waldorf-Astoria hotel in 1954 / Bridgeman Images

EVB2942469: Christian Herter, followed John Foster Dulles as Eisenhower's second Secretary of State on April 22, 1959 / Bridgeman Images

EVB2942472: 1952 Republican Convention in Chicago. Crowds outside of Chicago's International Amphitheater, site of the 1952 Republican National Convention / Bridgeman Images

EVB2942493: Utility buildings at the People's Temple Agricultural Project, in Jonestown, Guyana. 1978 / Bridgeman Images

EVB2942535: Physical examination of an aviation recruit's muscle development at the Episcopal Hospital, Washington, D.C. World War I. April 1918, Unknown photographer, (20th century) / Bridgeman Images

EVB2942845: World War 1. German observers using surveying instruments to measure the exact positions on the battlefield. c. 1915-1918 / Bridgeman Images

EVB2942848: World War 1. Western front battleground has been churned up by shell explosions so that it bears no resemblance to its peacetime appearance. Allied soldiers are in the background. c. 1915-18 / Bridgeman Images

EVB2942851: World War 1. Both sides launched flares between the trenches at regular intervals to illuminate 'no man's land' to detect raiders. c. 1915-18 / Bridgeman Images