|
1974 In Spaceflight
On March 29, 1974 Mariner 10 ''Mariner 10'' was an American Robotic spacecraft, robotic space probe launched by NASA on 3 November 1973, to fly by the planets Mercury (planet), Mercury and Venus. It was the first spacecraft to perform flybys of multiple planets. ''Ma ... became the first spacecraft to fly by Mercury, that saw a spacecraft for the first and last time in the 20th century. Launches , colspan=8, January , - , colspan=8, February , - , colspan=8, March , - , colspan=8, April , - , colspan=8, May , - , colspan=8, June , - , colspan=8, July , - , colspan=8, August , - , colspan=8, September , - , colspan=8, October , - , colspan=8, November , - , colspan=8, December , - Deep Space Rendezvous EVAs References Footnotes {{Orbital launches in 1974 Spaceflight by year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soyuz-U
The Soyuz-U launch vehicle was an improved version of the original Soyuz rocket. Soyuz-U was part of the R-7 family of rockets based on the R-7 Semyorka missile. Members of this rocket family were designed by the TsSKB design bureau and constructed at the Progress factory in Samara, Russia (now a united company, TsSKB-Progress). The first Soyuz-U flight took place on 18 May 1973, carrying as its payload Kosmos 559, a Zenit military surveillance satellite. The final flight of a Soyuz-U rocket took place on 22 February 2017, carrying Progress MS-05 to the International Space Station. Soyuz-U was in use continuously for almost 44 years. Production of R-7 derived launch vehicles peaked in the late 1970s-early 1980s at 55–60 a year. Soyuz-U held the world record of highest launch rate in a year in 1979 with 47 flights until this was beaten by SpaceX's Falcon 9 in 2022. Over its operational lifetime, the Soyuz-U variant flew a total of 786 missions, another world record. Soyuz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Brant (rocket)
The Black Brant is a family of Canadian-designed sounding rockets originally built by Bristol Aerospace, since absorbed by Magellan Aerospace in Winnipeg, Manitoba. Over 800 Black Brants of various versions have been launched since they were first produced in 1961, and the type remains one of the most popular sounding rockets. They have been repeatedly used by the Canadian Space Agency and NASA. History Black Brant was the result of research at Canadian Armament Research and Development Establishment (CARDE) during the 1950s into the nature of the upper part of the atmosphere as part of ongoing research into anti-ballistic missile systems and very-long-range communication. In 1957 CARDE contracted Bristol to produce a simple rocket fuselage, called the Propulsion Test Vehicle, for studies into high-power solid fuels. The resulting design, by Albert Fia, was quite heavy, as it was designed to be able to accommodate a wide variety of engine burning times, propellant loadings and la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Russian Aerospace Forces
The Russian Aerospace Forces or Russian Air and Space Forces ( rus, Воздушно-космические силы, r=Vozdushno-kosmicheskiye sily) or VKS ( rus, ВКС}) comprise the air and space branch of the Armed Forces of the Russian Federation. Russia established the VKS as a new branch of its military on 1 August 2015 with the merging of the Russian Air Force (VVS) and the Russian Aerospace Defence Forces (VVKO) - as recommended by the Ministry of Defence. The VKS has its headquarters in Moscow. Russia's Defense Minister Sergei Shoigu explained the merger as improving efficiency and logistical support. Organisation Sub-branches According to Jane's Information Group, with the merging of the Russian Air Force and the Russian Aerospace Defense Forces, the new Russian Aerospace Forces consist of three sub-branches: [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plesetsk
Plesetsk (russian: Плесе́цк) is an urban locality (a work settlement) and the administrative center of Plesetsky District, Arkhangelsk Oblast, Russia, situated about northeast of Moscow and south of Arkhangelsk. Municipally, it is the administrative center of Plesetskoye Urban Settlement, one of eight urban settlements in the district. Population: The vast Plesetsk Cosmodrome territory is located nearby and is administered from the town of Mirny which is away from Plesetsk. The territory also includes the Plestsy Airport. Etymology The name is derived from the word "" (''plyos'') which means "river reach". Plestsy is the name for a small lake which Plesetsk adjoins. History The area was populated by speakers of Uralic languages and then colonized by the Novgorod Republic. It belonged at the trading routes connecting central and northern Russia: first, from Moscow to the White Sea along the Onega River, and then, after 1765, along the newly built road between Sai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kosmos 3M
The Kosmos-3M (russian: Космос-3М meaning "''Cosmos''", GRAU index 11K65M) was a Russian space launch vehicle, member of the Kosmos rocket family. It was a liquid-fueled two-stage launch vehicle, first launched in 1967 and with over 420 successful launches to its name. The Kosmos-3M used UDMH fuel and AK27I oxidizer ( red fuming nitric acid) to lift roughly of payload into orbit. It differed from the earlier Kosmos-3 in its finer control of the second-stage burn, allowing operators to tune the thrust and even channel it through nozzles that helped orient the rocket for the launching of multiple satellites at one time. PO Polyot manufactured these launch vehicles in the Russian city of Omsk for decades. It was originally scheduled to be retired from service in 2011; however, in April 2010 the Commander of the Russian Space Forces confirmed that it would be retired by the end of 2010. One further launch, with Kanopus-ST, was planned; however, this was cancelled in late 20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plasma (physics)
Plasma () 1, where \nu_ is the electron gyrofrequency and \nu_ is the electron collision rate. It is often the case that the electrons are magnetized while the ions are not. Magnetized plasmas are ''anisotropic'', meaning that their properties in the direction parallel to the magnetic field are different from those perpendicular to it. While electric fields in plasmas are usually small due to the plasma high conductivity, the electric field associated with a plasma moving with velocity \mathbf in the magnetic field \mathbf is given by the usual Lorentz force, Lorentz formula \mathbf = -\mathbf\times\mathbf, and is not affected by Debye shielding. Mathematical descriptions To completely describe the state of a plasma, all of the particle locations and velocities that describe the electromagnetic field in the plasma region would need to be written down. However, it is generally not practical or necessary to keep track of all the particles in a plasma. Therefore, plasma physicist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poker Flat
The Poker Flat Research Range (PFRR) is a launch facility and rocket range for sounding rockets in the U.S. state of Alaska, located on a site at Chatanika, about 30 miles (50 km) northeast of Fairbanks and 1.5 degrees south of the Arctic Circle. More than 1,700 launches have been conducted at the range to study the Earth's atmosphere and the interaction between the atmosphere and the space environment. Areas studied at PFRR include the aurora, plasma physics, the ozone layer, solar proton events, Earth's magnetic field, and ultraviolet radiation. Rockets launched at PFRR have attained an apogee of . PFRR is owned by the University of Alaska Fairbanks (UAF) Geophysical Institute, the only such owned by a university in the world, and is operated under contract to the NASA Wallops Flight Facility. Other users include the United States Naval Research Laboratory (NRL), the Air Force Geophysics Lab (AFGL), and various universities and research laboratories. Since its foun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nike Tomahawk
The Nike stage or Nike booster, a solid fuel rocket motor, was created by Hercules Aerospace for the Nike Ajax (M5) Nike Hercules (M5E1) (and M88 late in Hercules career). It was developed for use as the first stage of the Nike Ajax and Nike Hercules missiles as part of Project Nike. It was subsequently employed in a variety of missiles and multi-stage sounding rockets, becoming one of the most popular and reliable rocket stages, not only in the United States, but also in several other countries around the world.Corliss 1972 p. 24 Sounding rockets based on Nike Booster *The Nike Deacon has a ceiling of 189 km, a takeoff thrust of 217 kN, a takeoff weight of 710 kg, a diameter of 0.42 m and a length of 7.74 m. * The Nike Javelin was launched 34 times between 1964 and 1978. The maximum flight altitude of the Nike Javelin was 130 km, the takeoff thrust 217 kN, takeoff weight 900 kg, 0.42 m and length 8.20 m. * The Nike Malemute consists of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Super Arcas
Arcas (originally "All-Purpose Rocket for Collecting Atmospheric Soundings", also designated Big Boy Rocket or "PWN-6") was the designation of an American sounding rocket, developed by the Atlantic Research Corp. (now Atlantic Richfield Company (ARCO)), Alexandria, Va. The Arcas sounding rocket is an unguided vehicle with a diameter of 4.5 inches designed to carry payloads of 12 pounds or less to heights in excess of 200,000 feet when launched from sea level.Bruce Bollerman''A Study of 30 km to 200 Km Meteorological Rocket sounding systems,'' Volume 1 Chapter 6.3.2, "Arcas,"' NASA Report CR-1529, May 1970, page 248-258. Retrieved 2018-03-22. It launched between July 31, 1959, and August 9, 1991, at least 421 times. The Arcas has a maximum flight altitude of 52 kilometers, a takeoff thrust of 1.5 kN, a takeoff weight of 34 kilograms, and a diameter of 11 centimeters. The Arcas was 2.30 m long and had a fin span of 0.33 m. History A 1957 Stanford Research Institute study pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wallops Island
Wallops Island is a island in Accomack County, Virginia, part of the Virginia Barrier Islands that stretch along the eastern seaboard of the United States of America. It is just south of Chincoteague Island, a popular tourist destination. Wallops Island proper, originally known as Kegotank Island, was granted to John Wallop by the Crown on April 29, 1692. Ownership was divided through the years, until the Commonwealth of Virginia seized the property in 1876 and 1877 in lieu of unpaid taxes. From 1877, ownership was again divided and subdivided until 1889, when it was held by various trustees for the Wallops Island Club. The Club was incorporated and assumed ownership in 1933 as the Wallops Island Association, Inc. Association members and their families spent the summers fishing and swimming on the island. The Association grazed sheep, cattle, and ponies on the area until the mid-1940s. In 1947, the U.S. Navy began using the upper two-thirds of the island on a lease-rental bas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nike Apache
The Nike Apache, also known as Argo B-13, was a two-stage sounding rocket developed by Aerolab, later Atlantic Research, for use by the United States Air Force and NASA. It became the standard NASA sounding rocket and was launched over 600 times between 1961 and 1978. Development The TE-307-2 Apache rocket motor was developed by Thiokol as an improvement of its Cajun series of rockets; the Apache was similar in appearance to Cajun, but had an improved propellant that allowed for better performance. Combined with a M5 Nike rocket booster for its first stage by Aerolab,Parsch 2004 the Nike-Apache sounding rocket was capable of lifting of instruments to an apogee of .Corliss 1971, p.82. Operational history The first launch of Nike-Apache was conducted by the United States Air Force on 17 February 1961. Popular due to its low cost (US$6,000) and ability to be fired from many locales, 636 launches were conducted between 1961 and 1978, with the final launch of a Nike-Apache taking pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ionosphere
The ionosphere () is the ionized part of the upper atmosphere of Earth, from about to above sea level, a region that includes the thermosphere and parts of the mesosphere and exosphere. The ionosphere is ionized by solar radiation. It plays an important role in atmospheric electricity and forms the inner edge of the magnetosphere. It has practical importance because, among other functions, it influences radio propagation to distant places on Earth. History of discovery As early as 1839, the German mathematician and physicist Carl Friedrich Gauss postulated that an electrically conducting region of the atmosphere could account for observed variations of Earth's magnetic field. Sixty years later, Guglielmo Marconi received the first trans-Atlantic radio signal on December 12, 1901, in St. John's, Newfoundland (now in Canada) using a kite-supported antenna for reception. The transmitting station in Poldhu, Cornwall, used a spark-gap transmitter to produce a signal with a freq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
