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Micro-Space
Micro-Space was an aerospace corporation based in Denver, Colorado, founded in February 1977 by Richard P. Speck under the name ''Spectron Instrument Corporation''. The corporation changed its name to "Micro-Space, Inc." in 1998. It was dissolved in 2011, following the death of the founder. In addition to funding and building a number of its own spacecraft and rockets, Micro-Space was a component supplier to the emerging CubeSat industry. Philosophy Micro-Space operated using a strategy based on using modern technology to achieve radical downsizing of space systems to minimize launch cost and make mission financing feasible. They claim cost-effectiveness is maximised by creating satellites the size of lunchboxes and cell phones as opposed to "Volkswagens". History While one of the smaller teams participating in the Ansari X Prize competition, Micro-Space had previously developed an active aerospace program flying innovative liquid fueled rockets. A long history of flying smal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunar Lander Challenge
The Northrop Grumman Lunar Lander Challenge (NG-LLC) was a competition funded by NASA's Centennial Challenges program. The competition offered a series of prizes for teams that launch a vertical takeoff/vertical landing (VTVL) rocket that achieved the total delta-v needed for a vehicle to move between the surface of the Moon and its orbit. The multi-level competition was conducted by the X PRIZE Foundation, with sponsorship from the Northrop Grumman Corporation who ran the ongoing competition. The prize purses were paid by NASA. It was held annually at the X PRIZE Cup, making its debut at the 2006 Wirefly X PRIZE Cup in October, 2006, until 2009 when the prize purse was awarded to Masten Space Systems and Armadillo Aerospace. Competition rules The competition is divided into two levels. Both levels require teams to demonstrate control of their vehicle by flying to an altitude of more than , flying laterally for , and landing on a pad. For level 1, this pad is a simple diam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerospace
Aerospace is a term used to collectively refer to the atmosphere and outer space. Aerospace activity is very diverse, with a multitude of commercial, industrial and military applications. Aerospace engineering consists of aeronautics and astronautics. Aerospace organizations research, design, manufacture, operate, or maintain both aircraft and spacecraft. The beginning of space and the ending of the air is considered as 100 km (62 mi) above the ground according to the physical explanation that the air pressure is too low for a lifting body to generate meaningful lift force without exceeding orbital velocity. Overview In most industrial countries, the aerospace industry is a cooperation of the public and private sectors. For example, several states have a civilian space program funded by the government, such as NASA, National Aeronautics and Space Administration in the United States, European Space Agency in Europe, the Canadian Space Agency in Canada, Indian Space Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrogen Peroxide
Hydrogen peroxide is a chemical compound with the formula . In its pure form, it is a very pale blue liquid that is slightly more viscous than water. It is used as an oxidizer, bleaching agent, and antiseptic, usually as a dilute solution (3%–6% by weight) in water for consumer use, and in higher concentrations for industrial use. Concentrated hydrogen peroxide, or " high-test peroxide", decomposes explosively when heated and has been used as a propellant in rocketry. Hydrogen peroxide is a reactive oxygen species and the simplest peroxide, a compound having an oxygen–oxygen single bond. It decomposes slowly when exposed to light, and rapidly in the presence of organic or reactive compounds. It is typically stored with a stabilizer in a weakly acidic solution in a dark bottle to block light. Hydrogen peroxide is found in biological systems including the human body. Enzymes that use or decompose hydrogen peroxide are classified as peroxidases. Properties The boiling poi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bob Twiggs
Robert J. "Bob" Twiggs is a Professor of Astronautics and Space Science at Morehead State University. He is responsible, along with Jordi Puig-Suari of California Polytechnic State University, for co-inventing the CubeSat reference design for miniaturized satellites which became an Industry Standard for design and deployment of the satellites. Education Twiggs earned a Bachelor of Science in Electrical and Electronics Engineering from the University of Idaho in 1961 and a Master of Science in Electrical Engineering with a concentration in microwave devices from Stanford University in 1964. Career From 1985 to 1994, Twiggs was the director of the Weber State University Center for Aerospace Technology. He served as a consulting professor in the Stanford University Department of Aeronautics and Astronautics from 1994 to 2008. At Stanford, he established the Space Systems Development Laboratory. Bob Twiggs became a professor at Morehead State University in 2009 in an effort to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morehead State University
Morehead State University (MSU) is a public university in Morehead, Kentucky. The university began as Morehead Normal School, which opened its doors in 1887. The Craft Academy for Excellence in Science and Mathematics, a two-year residential early college high school on the university's campus, was established in 2014. History The university began as Morehead Normal School, which opened its doors in 1887. One student appeared on the first day of class in October 1887, in a little, rented cottage where the Adron Doran University Center now stands. The private school closed in the spring of 1922 when the Kentucky General Assembly established Morehead State Normal School. The state institution accepted its first students in the fall of 1923, and graduated its first class in 1927. Name changes occurred again 1926, when it was extended to Morehead State Normal School and Teachers College; in 1930, when it was shortened to just Morehead State Teachers College; in 1948, when it was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sun-synchronous Orbit
A Sun-synchronous orbit (SSO), also called a heliosynchronous orbit, is a nearly polar orbit around a planet, in which the satellite passes over any given point of the planet's surface at the same local mean solar time. More technically, it is an orbit arranged so that it precesses through one complete revolution each year, so it always maintains the same relationship with the Sun. Applications A Sun-synchronous orbit is useful for imaging, reconnaissance, and weather satellites, because every time that the satellite is overhead, the surface illumination angle on the planet underneath it is nearly the same. This consistent lighting is a useful characteristic for satellites that image the Earth's surface in visible or infrared wavelengths, such as weather and spy satellites, and for other remote-sensing satellites, such as those carrying ocean and atmospheric remote-sensing instruments that require sunlight. For example, a satellite in Sun-synchronous orbit might ascend acros ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polar Orbit
A polar orbit is one in which a satellite passes above or nearly above both poles of the body being orbited (usually a planet such as the Earth, but possibly another body such as the Moon or Sun) on each revolution. It has an inclination of about 60 - 90 degrees to the body's equator. Launching satellites into polar orbit requires a larger launch vehicle to launch a given payload to a given altitude than for a near-equatorial orbit at the same altitude, because it cannot take advantage of the Earth's rotational velocity. Depending on the location of the launch site and the inclination of the polar orbit, the launch vehicle may lose up to 460 m/s of Delta-v, approximately 5% of the Delta-v required to attain Low Earth orbit. Usage Polar orbits are used for Earth-mapping, reconnaissance satellites, as well as for some weather satellites.Science Focus 2nd Edition 2, pg. 297 The Iridium satellite constellation uses a polar orbit to provide telecommunications services. Near-polar orb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dnepr (rocket)
The Dnepr rocket (russian: Днепр, translit=Dnepr; uk, Дніпро, translit=Dnipró) was a space launch vehicle named after the Dnieper River. It was a converted ICBM used for launching artificial satellites into orbit, operated by launch service provider ISC Kosmotras. The first launch, on April 21, 1999, successfully placed UoSAT-12, a 350 kg demonstration mini-satellite, into a 650 km circular Low Earth orbit. History The Dnepr was based on the R-36 (missile), R-36MUTTH Intercontinental ballistic missile (ICBM)called the ''SS-18 Satan'' by NATOdesigned in the 1970s by the Yuzhnoe Design Bureau in Dnepropetrovsk, Ukrainian SSR. The Dnepr control system was developed and produced by the Khartron, JSC "Khartron", Kharkiv. The Dnepr was a multistage rocket, three-stage rocket using storable hypergolic liquid propellants. The launch vehicles used for satellite launches have been withdrawn from ballistic missile service with the Russian Strategic Rocket Forces a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
State Space Agency Of Ukraine
The State Space Agency of Ukraine (SSAU; uk, Державне космічне агентство України, ''Derzhavne kosmichne ahentstvo Ukrayiny'', ДКАУ, ''DKAU'') is the Ukrainian government agency responsible for space policy and programs. Along with the Ukrainian Defense Industry and the Antonov Aeronautical Scientific-Technical Complex, it is a major state complex of the national defense industry of Ukraine.The agency was formed in 1992 based on the Soviet space program infrastructure remaining in Ukraine following the dissolution of the Soviet Union. The State Space Agency of Ukraine does not specialize in crewed astronautical programs. It is the second of two direct Soviet space program descendants. The Ukrainian city of Dnipro, also known as the Rocket City, during Soviet period was one of the Soviet space rocket manufacturing centers, while the cities of Kyiv and Kharkiv provided various other technological support. Those remnants of the Soviet space prog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EduSAT
EduSAT is an Italian microsatellite which was launched in August 2011. The satellite was built and is operated by the Sapienza University of Rome in conjunction with the Italian Space Agency ASI, and is primarily used for educational outreach and technology demonstration. EduSAT is a satellite, measuring . The spacecraft is powered by surface-mounted solar cells. It carries an experimental analogue sun sensor, a magnetometer and a temperature sensor. The satellite also tested a prototype PocketQube deployer and a passive deorbit mechanism. As of September 2013 it remained operational. EduSAT was launched aboard a Dnepr carrier rocket from Site 370/13 at the Dombarovsky launch site in Russia. The launch was conducted by Kosmotras with liftoff occurring at 07:12:20 on 17 August 2011. The rocket carried six other satellites, with an additional payload bolted to the upper stage. The satellite was placed into a sun-synchronous low Earth orbit. As of 22 November 2013 it was in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mars Landing
A Mars landing is a landing of a spacecraft on the surface of Mars. Of multiple attempted Mars landings by robotic, uncrewed spacecraft, ten have had successful soft landings. There have also been studies for a possible human mission to Mars, including a landing, but none have been attempted. Soviet Union’s Mars 3, which landed in 1971, was the first successful Mars landing. As of May 2021, the Soviet Union, United States, and China have conducted Mars landings successfully. Methods of descent and landing As of 2021, all methods of landing on Mars have used an aeroshell and parachute sequence for Mars atmospheric entry and descent, but after the parachute is detached, there are three options. A stationary lander can drop from the parachute back shell and ride retrorockets all the way down, but a rover cannot be burdened with rockets that serve no purpose after touchdown. One method for lighter rovers is to enclose the rover in a tetrahedral structure which in turn is encl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interplanetary Mission
Interplanetary spaceflight or interplanetary travel is the crewed or uncrewed travel between stars and planets, usually within a single planetary system. In practice, spaceflights of this type are confined to travel between the planets of the Solar System. Uncrewed space probes have flown to all the observed planets in the Solar System as well as to dwarf planets Pluto and Ceres, and several asteroids. Orbiters and landers return more information than fly-by missions. Crewed flights have landed on the Moon and have been planned, from time to time, for Mars, Venus and Mercury. While many scientists appreciate the knowledge value that uncrewed flights provide, the value of crewed missions is more controversial. Science fiction writers propose a number of benefits, including the mining of asteroids, access to solar power, and room for colonization in the event of an Earth catastrophe. A number of techniques have been developed to make interplanetary flights more economical. Advanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
