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Reconnaissance Satellites
A reconnaissance satellite or intelligence satellite (commonly, although unofficially, referred to as a spy satellite) is an Earth observation satellite or communications satellite deployed for Military intelligence, military or espionage, intelligence applications. The first generation type (i.e., Corona (satellite), Corona and Zenit (satellite), Zenit) took photographs, then ejected canisters of photographic film which would descend back down into Earth's atmosphere. Corona capsules were mid-air retrieval, retrieved in mid-air as they floated down on parachutes. Later, spacecraft had digital imaging systems and downloaded the images via encrypted radio links. In the United States, most information available about reconnaissance satellites is on programs that existed up to 1972, as this information has been Declassification, declassified due to its age. Some information about programs before that time is still classified information, and a small amount of information is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CIA Aerial View Osama Bin Laden Compound Abbottabad
The Central Intelligence Agency (CIA; ) is a civilian intelligence agency, foreign intelligence service of the federal government of the United States tasked with advancing national security through collecting and analyzing intelligence from around the world and conducting covert operations. The agency is headquartered in the George Bush Center for Intelligence in Langley, Virginia, and is sometimes Metonymy, metonymously called "Langley". A major member of the United States Intelligence Community (IC), the CIA has reported to the Director of National Intelligence, director of national intelligence since 2004, and is focused on providing intelligence for the President of the United States, president and the Cabinet of the United States, Cabinet. The CIA is headed by Director of the Central Intelligence Agency, a director and is divided into various directorates, including a Directorate of Analysis and Directorate of Operations (CIA), Directorate of Operations. Unlike the Feder ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Classified Information
Classified information is confidential material that a government deems to be sensitive information which must be protected from unauthorized disclosure that requires special handling and dissemination controls. Access is restricted by law or regulation to particular groups of individuals with the necessary security clearance with a need to know. A formal security clearance is required to view or handle classified material. The clearance process requires a satisfactory background investigation. Documents and other information must be properly marked "by the author" with one of several (hierarchical) levels of sensitivity—e.g. Confidential (C), Secret (S), and Top Secret (S). All classified documents require designation markings on the technical file which is usually located either on the cover sheet, header and footer of page. The choice of level is based on an impact assessment; governments have their own criteria, including how to determine the classification of an inf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Detonation Detection System
A nuclear detonation detection system (NDDS) is a device or a series of devices that are able to indicate, and pinpoint a nuclear explosion has occurred as well as the direction of the explosion. The main purpose of these devices or systems was to verify compliance of countries that signed nuclear treaties such as the Partial Test Ban treaty of 1963 (PTBT) and the Treaty of Tlatelolco. There are many different ways to detect a nuclear detonation, these include seismic, hydroacoustic, and infrasound detection, air sampling, and satellites. They have their own weaknesses and strengths, as well as different utilities. Each has been used separately, but at present the best results occur when data is used in tandem, since the energy caused by an explosion will transfer over to different mediums. Seismic Seismic networks are one of the possibilities of detonation detection. During an above ground nuclear explosion, there will be a blooming mushroom in the sky, but there will also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Missile Defense Alarm System
The Missile Defense Alarm System, or MIDAS, was a United States Air Force Air Defense Command system of 12 early-warning satellites that provided limited notice of Soviet intercontinental ballistic missile launches between 1960 and 1966. Originally it was intended to serve as a complete early-warning system working in conjunction with the Ballistic Missile Early Warning System, cost and reliability concerns limited the project to a research and development role. Three of the system's 12 launches ended in failure, and the remaining nine satellites provided crude infrared early-warning coverage of the Soviet Union until the project was replaced by the Defense Support Program. MiDAS represented one element of the United States's first generation of reconnaissance satellites that also included the Corona and SAMOS series. Though MIDAS failed in its primary role as a system of infrared early-warning satellites, it pioneered the technologies needed in successor systems. Origins On O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ballistic Missile
A ballistic missile is a type of missile that uses projectile motion to deliver warheads on a target. These weapons are powered only during relatively brief periods—most of the flight is unpowered. Short-range ballistic missiles (SRBM) typically stay within the Earth's atmosphere, while most larger missiles travel outside the atmosphere. The type of ballistic missile with the greatest range is an intercontinental ballistic missile (ICBM). The largest ICBMs are capable of full orbital flight. These missiles are in a distinct category from cruise missiles, which are aerodynamically guided in powered flight and thus restricted to the atmosphere. History One modern pioneer ballistic missile was the A-4, commonly known as the V-2, developed by Nazi Germany in the 1930s and 1940s under the direction of Wernher von Braun. The first successful launch of a V-2 was on October 3, 1942, and it began operation on September 6, 1944, against Paris, followed by an attack on London two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The American Society For Photogrammetry And Remote Sensing
''The'' is a grammatical article in English, denoting nouns that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archaic pronoun ''thee' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed U-2
The Lockheed U-2, nicknamed the "''Dragon Lady''", is an American single-engine, high–altitude reconnaissance aircraft operated by the United States Air Force (USAF) and the Central Intelligence Agency (CIA) since the 1950s. Designed for all-weather, day-and-night intelligence gathering at altitudes above ), the U-2 has played a pivotal role in aerial surveillance for decades. Lockheed Corporation originally proposed the aircraft in 1953. It was approved in 1954, and its first test flight was in 1955. It was flown during the Cold War over the Soviet Union, China, Vietnam War, Vietnam, and Cuba. In 1960, Francis Gary Powers, Gary Powers was 1960 U-2 incident, shot down in a CIA U-2C over the Soviet Union by a surface-to-air missile (SAM). Major Rudolf Anderson, Rudolf Anderson Jr. was shot down in a U-2 during the Cuban Missile Crisis in 1962. U-2s have taken part in post-Cold War conflicts in War in Afghanistan (2001–2021), Afghanistan and Operation Iraqi Freedom, Iraq, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Air Force
The United States Air Force (USAF) is the Air force, air service branch of the United States Department of Defense. It is one of the six United States Armed Forces and one of the eight uniformed services of the United States. Tracing its origins to 1 August 1907, as a part of the United States Army Signal Corps, the USAF was established by transfer of personnel from the Army Air Forces with the enactment of the National Security Act of 1947. It is the second youngest branch of the United States Armed Forces and the fourth in United States order of precedence, order of precedence. The United States Air Force articulates its core missions as air supremacy, intelligence, surveillance, target acquisition, and reconnaissance, global integrated intelligence, surveillance and reconnaissance, airlift, rapid global mobility, Strategic bombing, global strike, and command and control. The United States Department of the Air Force, Department of the Air Force, which serves as the USAF's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Safir (rocket)
The Safir (, meaning "ambassador") was the first Iranian expendable launch vehicle able to place a satellite in orbit. The first successful orbital launch using the Safir launch system took place on 2 February 2009 when a Safir carrier rocket placed the Omid satellite into an orbit with a apogee. This made Iran the ninth nation capable of producing and launching a satellite. The Simorgh is a larger orbital launcher based on Safir technology which has since replaced the Safir, and is sometimes called the Safir-2. Design and specifications The Safir measures 1.25 meters in diameter, 22 meters in height and has a launching mass of 26 tons. The rocket consists of two stages; The first stage utilizes an upgraded Nodong/ Shahab-3 type engine which burns a hypergolic combination of UDMH as fuel and nitrogen tetroxide as oxidant, producing 37 tons (363 kN; 82,500 lbf) of thrust. The second stage utilizes a pair of smaller gimballed engines called LRE-4, fed by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donald Trump On Social Media
Donald Trump's use of social media attracted attention worldwide since he joined Twitter in May 2009. Over nearly twelve years, Twitter use by Donald Trump, Trump tweeted around 57,000 times, including about 8,000 times during the Donald Trump 2016 presidential campaign, 2016 election campaign and over 25,000 times during his presidency. The White House said the tweets should be considered official statements. When Twitter banned Trump from the platform in January 2021 during the final days of his term, his handle @realDonaldTrump had over 88.9 million Friending and following, followers. For most of First presidency of Donald Trump, Trump's first presidency, his account on Twitter, where he often posted controversial and False or misleading statements by Donald Trump, false statements, remained unmoderated in the name of "public interest". Congress performed its own form of moderation, and in the face of this political censure, his tweets only accelerated. During his 2020 Uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donald Trump
Donald John Trump (born June 14, 1946) is an American politician, media personality, and businessman who is the 47th president of the United States. A member of the Republican Party (United States), Republican Party, he served as the 45th president from 2017 to 2021. Born into a wealthy family in the New York City borough of Queens, Trump graduated from the University of Pennsylvania in 1968 with a bachelor's degree in economics. He became the president of his family's real estate business in 1971, renamed it the Trump Organization, and began acquiring and building skyscrapers, hotels, casinos, and golf courses. He launched side ventures, many licensing the Trump name, and filed for six business bankruptcies in the 1990s and 2000s. From 2004 to 2015, he hosted the reality television show ''The Apprentice (American TV series), The Apprentice'', bolstering his fame as a billionaire. Presenting himself as a political outsider, Trump won the 2016 United States presidential e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
