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Oreshnik (missile)
Oreshnik (), is a Russian intermediate-range ballistic missile (IRBM) characterized by its reported speed exceeding , according to the Ukrainian military. The missile is equipped with six warheads, each reportedly containing submunitions, and has been described as highly difficult to intercept, though modern ballistic missile interceptors are designed to counter this type of system. Deputy Pentagon Press Secretary Sabrina Singh has identified the Oreshnik as a variant of the RS-26 Rubezh IRBM. History Development Oreshnik is believed to be derived from the RS-26 Rubezh IRBM, which has been test-fired five times but never entered service. According to experts, the Oreshnik likely removed a booster stage from the RS-26, reducing its range. First operational use The Oreshnik saw its first confirmed operational use on 21 November 2024, during the Russo-Ukrainian War. The missile was employed in an attack on Ukraine's PA Pivdenmash facility in Dnipro. Initially, Ukrainia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intermediate-range Ballistic Missile
An intermediate-range ballistic missile (IRBM) is a ballistic missile with a range (aeronautics), range between (), categorized between a medium-range ballistic missile (MRBM) and an intercontinental ballistic missile (ICBM). Classifying ballistic missiles by range is done mostly for convenience. In principle there is little difference between a high-performance IRBM and a low-performance ICBM, because decreasing payload mass can increase the range over the ICBM threshold. The range definition used here is used within the U.S. Missile Defense Agency. History The progenitor for the IRBM was the Aggregate (rocket family)#A4b/A9, A4b rocket, winged for increased range and based on the famous V-2 rocket, V-2, Vergeltung, or "Reprisal", officially called Aggregate series, A4, rocket designed by Wernher von Braun. The V-2 was widely used by Nazi Germany at the end of World War II to bomb English and Belgian cities. The A4b was the prototype for the upper stage of the Aggregate (rock ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astrakhan Oblast
Astrakhan Oblast (; ) is a federal subject of Russia (an oblast) located in southern Russia. Its administrative center is the city of Astrakhan. As of the 2010 Census, its population was 1,010,073. Geography Astrakhan's southern border is the Caspian Sea, eastern is Kazakhstan (Atyrau Region and West Kazakhstan Region), northern is Volgograd Oblast, and western is Kalmykia. It is within the Russian Southern Federal District. File:Narimanovsky District, Astrakhan Oblast, Russia - panoramio (3).jpg, Semi-desert in Narimanovsky District File:Богдо4.jpg, Bogdo-Baskunchak Nature Reserve History Since the Middle Ages, the territory has been ruled by Khazars, Cumania, the Mongol-Tatar Golden Horde, the Tatar Astrakhan Khanate, and Russia. Astrakhan region is the homeland of the Buzhans, one of several Slavic tribes from which modern Russians evolved; they lived in Southern Russia and inhabited the area around the Buzan river. In the 16th century, Indians began mov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circular Error Probable
Circular error probable (CEP),Circular Error Probable (CEP), Air Force Operational Test and Evaluation Center Technical Paper 6, Ver 2, July 1987, p. 1 also circular error probability or circle of equal probability, is a measure of a weapon system's Accuracy and precision, precision in the military science of ballistics. It is defined as the radius of a circle, centered on the aimpoint, that is expected to enclose the landing points of 50% of the Round (firearms), rounds; said otherwise, it is the median error radius, which is a 50% confidence interval. That is, if a given munitions design has a CEP of 100 m, when 100 munitions are targeted at the same point, an average of 50 will fall within a circle with a radius of 100 m about that point. There are associated concepts, such as the DRMS (distance root mean square), which is the square root of the average squared distance error, a form of the standard deviation. Another is the R95, which is the radius of the circle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stimson Center
The Stimson Center is a 501(c)(3) organization, nonprofit, nonpartisan think tank that analyzes issues related to global peace. It is named after the American lawyer and politician Henry L. Stimson. Stimson analyzes issues such as nuclear proliferation, arms trafficking, Water resources, water management, wildlife poaching, and responses to humanitarian crises. It also provides consulting for US and international institutions and publishes articles for the general public. In 2013, Stimson received the MacArthur Award for Creative and Effective Institutions. Stimson was ranked 10th best US think tank in the University of Pennsylvania's ''2020 Global Go To Think Tanks Report''. History The Stimson Center was founded in 1989 by Barry Blechman and Michael Krepon. It is currently led by Chairman of the Board Herbert "Hawk" Carlisle and President and CEO Brian Finlay. The center is funded by research contracts, grants from foundations and other donations. It publicly discloses fundi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kyiv Independent
''The Kyiv Independent'' is an English-language Ukrainian online newspaper founded in November 2021, three months before the 2022 Russian invasion of Ukraine, by former staff of the ''Kyiv Post'' and media consultancy Jnomics Media. The online newspaper is also active on Twitter, Bluesky and Reddit. Background In October 2021, disputes arose between employees of the ''Kyiv Post'' and the owner of the newspaper. Journalists at the newspaper believed that even under the presidency of Volodymyr Zelenskyy, their previous critical reporting was adversely affecting the business of the owner, who had bought the barely-profitable newspaper from Mohammad Zahoor in March 2018, and invested significant funds in it. The owner of the ''Kyiv Post'' at the time was the Syrian-born investor Adnan Kivan (Kadorr Group, which owns Channel Odesa 7). Brian Bonner, the former CEO of the ''Kyiv Post,'' said in April 2022 that the newspaper's "fragmentary reporting" had brought it into conflict wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Oslo
The University of Oslo (; ) is a public university, public research university located in Oslo, Norway. It is the List of oldest universities in continuous operation#Europe, oldest university in Norway. Originally named the Royal Frederick University, the university was established in 1811 as the de facto Norwegian continuation of Denmark-Norway's common university, the University of Copenhagen, with which it shares many traditions. It was named for King Frederick VI of Denmark and Norway, and received its current name in 1939. The university was commonly nicknamed "The Royal Frederick's" (''Det Kgl. Frederiks'') before the name change, and informally also referred to simply as ''Universitetet'' (). The university was the only university in Norway until the University of Bergen was founded in 1946. It has approximately 27,700 students and employs around 6,000 people. Its faculties include (Lutheranism, Lutheran) theology (with the Lutheran Church of Norway having been Norway's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jeffrey Lewis (academic)
Jeffrey Lewis is an American expert in nuclear nonproliferation and geopolitics, currently a professor at the James Martin Center for Nonproliferation Studies (otherwise known as the CNS) at the Middlebury Institute of International Studies at Monterey, and director of the CNS East Asia Nonproliferation Program. He has written two books on China's nuclear weapons, and numerous journal and magazine articles, blog posts, and podcasts on nonproliferation and related topics. Since 2004 Lewis has run the blog site ''Arms Control Wonk,'' later hosting a podcast by the same name with Aaron Stein. Lewis has been cited as an expert on nuclear programs of China, North Korea, Iran, Pakistan, and South Africa in the media. His research interests have also included open-source intelligence, using and promoting the use of analysis of satellite images, photography, and other information sources to understand events and issues in proliferation and related topics. Education Lewis received a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RIM-161 Standard Missile 3
The RIM-161 Standard Missile 3 (SM-3) is a ship-based surface-to-air missile used by the United States Navy to intercept ballistic missiles as a part of Aegis Ballistic Missile Defense System. Although primarily designed as an anti-ballistic missile, the SM-3 has also been employed in an anti-satellite capacity against a satellite at the lower end of low Earth orbit.Pentagon news briefing of February 14, 2008video : although no name for the satellite is given, the launch date of December 14, 2006 is stated The SM-3 is primarily used and tested by the and also operated by the |
Arrow 3
The Arrow 3 or ''Hetz 3'' (, or ) is an exoatmospheric hypersonic anti-ballistic missile, jointly funded, developed and produced by Israel and the United States. Undertaken by Israel Aerospace Industries (IAI) and Boeing, it is overseen by the Israeli Ministry of Defense's "''Homa''" (, , "rampart") administration and the U.S. Missile Defense Agency. It provides exo-atmospheric interception of ballistic missiles (during the space-flight portion of their trajectory), including intercontinental ballistic missiles (ICBMs) carrying nuclear, chemical, biological or conventional warheads. With divert motor capability, its kill vehicle can switch directions dramatically. It can also be adapted for an anti-satellite role: it has sensors that can pivot 90 degrees in order to detect approaching satellites. The missile's reported flight range is up to . According to the chairman of the Israeli Space Agency, Arrow 3 may serve as an anti-satellite weapon, which would make Israel one of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Atmosphere
Upper atmosphere is a collective term that refers to various layers of the atmosphere of the Earth above the troposphere and corresponding regions of the atmospheres of other planets, and includes: * The mesosphere, which on Earth lies between the altitudes of about , sometimes considered part of the "middle atmosphere" rather than the upper atmosphere * The thermosphere, which on Earth lies between the altitudes of about * The exosphere, which on Earth lies between the altitudes of about and * The ionosphere, an ionized portion of the upper atmosphere which includes the upper mesosphere, thermosphere, and lower exosphere and on Earth lies between the altitudes of See also * Geospace *Magnetosphere *Near space Near space is the upper region of the Earth's atmosphere between airspace and outer space. It is sometimes referred to as the " edge of space". There is no legal definition for this extent, but typically this is the altitude range from . Rang ... References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Center For Strategic And International Studies
The Center for Strategic and International Studies (CSIS) is an American think tank based in Washington, D.C. From its founding in 1962 until 1987, it was an affiliate of Georgetown University, initially named the Center for Strategic and International Studies of Georgetown University. The center conducts policy studies and strategic analyses of political, economic and security issues throughout the world, with a focus on issues concerning international relations, trade, technology, finance, energy and geostrategy. Since its founding, CSIS "has been dedicated to finding ways to sustain American prominence and prosperity as a force for good in the world", according to its website. CSIS is officially a bipartisan think tank with scholars that represent varying points of view across the political spectrum. It is known for inviting well-known foreign policy and public service officials from the U.S. Congress and the executive branch, including those affiliated with either the Democ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
