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- Project_Vanguard abstract "Project Vanguard was a program managed by the United States Naval Research Laboratory (NRL), which intended to launch the first artificial satellite into Earth orbit using a Vanguard rocket as the launch vehicle from Cape Canaveral Missile Annex, Florida.In response to the surprise launch of Sputnik 1 on October 4, 1957, the U.S. restarted the Explorer program, which had been proposed earlier by the Army Ballistic Missile Agency (ABMA). Privately, however, the CIA and President Dwight D. Eisenhower were aware of progress being made by the Soviets on Sputnik from secret spy plane imagery. Together with the Jet Propulsion Laboratory (JPL), ABMA built Explorer 1 and launched it on January 31, 1958. Before work was completed, however, the Soviet Union launched a second satellite, Sputnik 2, on November 3, 1957. Meanwhile, the spectacular televised failure of Vanguard TV3 on December 6, 1957 deepened American dismay over the country's position in the Space Race.On March 17, 1958, Vanguard 1 became the second artificial satellite successfully placed in Earth orbit by the United States. It was the first solar-powered satellite. Just 152 mm (6 in) in diameter and weighing just 1.4 kg (3 lb), Vanguard 1 was described by then-Soviet Premier Nikita Khrushchev as, "The grapefruit satellite."Vanguard 1 is the oldest artificial satellite still in space, as Vanguard's predecessors, Sputnik 1, Sputnik 2, and Explorer 1, have decayed from orbit.".
- Project_Vanguard thumbnail Vanguard_rocket_vanguard1_satellite.jpg?width=300.
- Project_Vanguard wikiPageExternalLink series95.html.
- Project_Vanguard wikiPageExternalLink cover.htm.
- Project_Vanguard wikiPageExternalLink nation.html.
- Project_Vanguard wikiPageID "147753".
- Project_Vanguard wikiPageRevisionID "605070842".
- Project_Vanguard hasPhotoCollection Project_Vanguard.
- Project_Vanguard subject Category:NASA_programs.
- Project_Vanguard subject Category:Project_Vanguard.
- Project_Vanguard subject Category:Rockets_and_missiles.
- Project_Vanguard type Artifact100021939.
- Project_Vanguard type Conveyance103100490.
- Project_Vanguard type Instrumentality103575240.
- Project_Vanguard type Object100002684.
- Project_Vanguard type PhysicalEntity100001930.
- Project_Vanguard type Rocket104099429.
- Project_Vanguard type RocketsAndMissiles.
- Project_Vanguard type Vehicle104524313.
- Project_Vanguard type Whole100003553.
- Project_Vanguard comment "Project Vanguard was a program managed by the United States Naval Research Laboratory (NRL), which intended to launch the first artificial satellite into Earth orbit using a Vanguard rocket as the launch vehicle from Cape Canaveral Missile Annex, Florida.In response to the surprise launch of Sputnik 1 on October 4, 1957, the U.S. restarted the Explorer program, which had been proposed earlier by the Army Ballistic Missile Agency (ABMA). Privately, however, the CIA and President Dwight D.".
- Project_Vanguard label "Program Vanguard".
- Project_Vanguard label "Programme Vanguard".
- Project_Vanguard label "Project Vanguard".
- Project_Vanguard label "Projeto Vanguard".
- Project_Vanguard label "Vanguard-Projekt".
- Project_Vanguard label "Авангард (проект)".
- Project_Vanguard sameAs Program_Vanguard.
- Project_Vanguard sameAs Vanguard-Projekt.
- Project_Vanguard sameAs Programme_Vanguard.
- Project_Vanguard sameAs Proyek_Vanguard.
- Project_Vanguard sameAs Program_Vanguard.
- Project_Vanguard sameAs Projeto_Vanguard.
- Project_Vanguard sameAs m.012xn3.
- Project_Vanguard sameAs Q179527.
- Project_Vanguard sameAs Q179527.
- Project_Vanguard sameAs Project_Vanguard.
- Project_Vanguard wasDerivedFrom Project_Vanguard?oldid=605070842.
- Project_Vanguard depiction Vanguard_rocket_vanguard1_satellite.jpg.
- Project_Vanguard isPrimaryTopicOf Project_Vanguard.