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SpaceX CRS-27
SpaceX CRS-27, also known as SpX-27, was a Commercial Resupply Service mission to the International Space Station (ISS) launched on 15 March 2023. The mission was contracted by NASA and was flown by SpaceX using Cargo Dragon C209. This was the seventh flight for SpaceX under NASA's CRS Phase 2. Cargo Dragon SpaceX plans to reuse the Cargo Dragons up to five times. The Cargo Dragon will launch without SuperDraco abort engines, without seats, cockpit controls and the life support system required to sustain astronauts in space. Dragon 2 improves on Dragon 1 in several ways, including lessened refurbishment time, leading to shorter periods between flights. The new Cargo Dragon capsules under the NASA CRS Phase 2 contract will land east of Florida in the Atlantic Ocean. Payload NASA contracted for the CRS-27 mission from SpaceX and therefore determines the primary payload, date of launch, and orbital parameters for the Cargo Dragon. * Science investigations: ~ * Vehicle h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commercial Resupply Services
Commercial Resupply Services (CRS) are a series of flights awarded by NASA for the delivery of cargo and supplies to the International Space Station (ISS) on commercially operated spacecraft. The first phase of CRS contracts (CRS-1) were signed in 2008 and awarded $1.6 billion to SpaceX for twelve SpaceX Dragon 1, Dragon 1 and $1.9 billion to Orbital Sciences for eight Cygnus (spacecraft), Cygnus flights, covering deliveries to 2016. The first operational resupply missions were flown by SpaceX in 2012 (SpaceX CRS-1, CRS SpX-1) and Orbital in 2014 (Cygnus CRS Orb-1, CRS Orb-1). In 2015, NASA extended CRS-1 to twenty flights for SpaceX and twelve flights for Orbital ATK. A second phase of contracts (CRS-2) was solicited in 2014. CRS-2 contracts were awarded in January 2016 to Orbital ATK's continued use of Cygnus (spacecraft), Cygnus, Sierra Nevada Corporation's new Dream Chaser, and SpaceX's new SpaceX Dragon 2, Dragon 2, for cargo transport flights beginning in 2019 and expec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SpaceX Dragon
Dragon is a family of spacecraft developed and produced by American private space transportation company SpaceX. The first variant, later named SpaceX Dragon 1, Dragon 1, flew 23 cargo missions to the International Space Station (ISS) between 2010 and 2020 before retiring. Design of this version, not designed to carry astronauts, was funded by NASA with $396 million awarded through the Commercial Orbital Transportation Services program and contracted to ferry cargo under the Commercial Resupply Services (CRS) program. An improved version, the SpaceX Dragon 2, Dragon 2, was introduced in 2019 and has both crewed and cargo versions. The first un-crewed flight test (Crew Dragon Demo-1, Demo-1) took place in March 2019, followed by a crewed flight test (Crew Dragon Demo-2, Demo-2) in May 2020. Since those flight tests, the Crew Dragon has become one of the primary spacecraft ferrying crew to and from the ISS. While the Cargo Dragon continues to carry cargo under the CRS program. S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aurora Research Institute
Aurora Research Institute, formerly Science Institute of the NWT, is a research centre in the Northwest Territories, Canada. It is part of Aurora College, with offices in Inuvik, Yellowknife and Fort Smith. Aurora Research Institute offers licensing and research assistance in the Northwest Territories. The institute provides logistical support in the form of laboratory facilities, office space, storage, accommodation and equipment rentals for visiting researchers and promotes science in northern schools. Licensing under the Northwest Territories Scientists Act is handled by the Aurora Research Institute. Mission Aurora Research Institute promotes communication between researchers and the people of the land in which they work. Increasing public awareness of the importance of science, technology and indigenous knowledge is a key goal. History The Science Institute of the Northwest Territories was created by the Legislative Assembly of the Northwest Territories in 1984. In 1995, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yukon University
Yukon University (formerly Yukon College) is a public university in the Canadian territory of Yukon. The university main campus is based in Whitehorse, although the institution also operates 12 campuses throughout the territory. The university confers bachelor's degrees, diplomas, certificates as well as trades and vocational training and adult basic education. The institution is currently the only university based in northern Canada. The institution traces its origins to the Whitehorse Vocational and Technical Training Centre established in 1963; it was renamed as the Yukon Vocational and Training Centre in 1965. The institution operated as a post-secondary education centre, providing vocational training for its students. During the 1980s, the institution was reorganized as a college. The institution operated as Yukon College until the institution was reorganized into a university in 2020, the first university in any of Canada's northern territories. History The institution orig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amateur Radio
Amateur radio, also known as ham radio, is the use of the radio frequency radio spectrum, spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency, emergency communications. The term ''"radio amateur"'' is used to specify ''"a duly authorized person interested in radioelectric practice with a purely personal aim and without wikt:pecuniary, pecuniary interest"'' (either direct monetary or other similar reward); and to differentiate it from commercial broadcasting, public safety (police and fire), or two-way radio professional services (maritime, aviation, taxis, etc.). The amateur radio service (''amateur service'' and ''amateur-satellite service'') is established by the International Telecommunication Union (ITU) through their recommended radio regulations. National governments regulate technical and operational characteristics of transmissions and issue individual station li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McMaster University
McMaster University (McMaster or Mac) is a public research university in Hamilton, Ontario, Canada. The main McMaster campus is on of land near the residential neighbourhoods of Ainslie Wood, Ontario, Ainslie Wood and Westdale, Ontario, Westdale, adjacent to the Royal Botanical Gardens, Ontario, Royal Botanical Gardens. It operates six Faculty (division), academic faculties: the DeGroote School of Business, McMaster Faculty of Engineering, Engineering, McMaster Faculty of Health Sciences, Health Sciences, Humanities, McMaster Faculty of Social Sciences, Social Science, and McMaster Faculty of Science, Science. It is a member of the U15 Group of Canadian Research Universities, U15, a group of research-intensive universities in Canada. The university bears the name of William McMaster, a prominent Canadian Senate of Canada, senator and banker who bequeathed Canadian dollar, C$900,000 to its founding. It was incorporated under the terms of an act of the Legislative Assembly of On ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CubeSat
A CubeSat is a class of small satellite with a form factor of cubes. CubeSats have a mass of no more than per unit,, url=https://static1.squarespace.com/static/5418c831e4b0fa4ecac1bacd/t/5f24997b6deea10cc52bb016/1596234122437/CDS+REV14+2020-07-31+DRAFT.pdf , title=Cubesat Design Specification , publisher=California Polytechnic State University, San Luis Obispo, Cal Poly SLO , year=2020 , location=San Luis Obispo , pages=12 and often use commercial off-the-shelf (COTS) components for their electronics and structure. CubeSats are deployed into orbit from the International Space Station, or launched as secondary payloads on a launch vehicle. , more than 2,300 CubeSats have been launched. In 1999, California Polytechnic State University (Cal Poly) professor Jordi Puig-Suari and Bob Twiggs, a professor at Stanford University Space Systems Development Laboratory, developed the CubeSat specifications to promote and develop the skills necessary for the design, manufacture, and testing of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vitrimers
Vitrimers are a class of plastics, which are derived from thermosetting polymers (thermosets) and are very similar to them. Vitrimers consist of molecular, covalent networks, which can change their topology by thermally activated bond-exchange reactions. At high temperatures, they can flow like viscoelastic liquids; at low temperatures, the bond-exchange reactions are immeasurably slow (''frozen''), and the Vitrimers behave like classical thermosets at this point. Vitrimers are strong glass formers. Their behavior opens new possibilities in the application of thermosets, such as a self-healing material or simple processibility in a wide temperature range. Besides epoxy resins based on diglycidyl ether of bisphenol A, other polymer networks have been used to produce vitrimers, such as aromatic polyesters, polylactic acid (polylactide), polyhydroxyurethanes, epoxidized soybean oil with citric acid, and polybutadiene. Vitrimers were termed as such in the early 2010s by French rese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Materials International Space Station Experiment
The Materials International Space Station Experiment (MISSE) is a series of experiments mounted externally on the International Space Station (ISS) that investigates the effects of long-term exposure of materials to the harsh space environment. The MISSE project evaluates the performance, stability, and long-term survivability of materials and components planned for use by NASA, commercial companies and the United States Department of Defense, Department of Defense (DOD) on future Low Earth Orbit, low Earth orbit (LEO), synchronous orbit and interplanetary spaceflight, interplanetary space missions. The Long Duration Exposure Facility (LDEF), which was retrieved in 1990 after spending 68 months in LEO, revealed that space environments are very hostile to many spacecraft materials and components. Atomic oxygen, which is the most prevalent atomic species encountered in low earth orbit, is highly reactive with plastics and some metals, causing severe erosion. There is also extreme ul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lawrence Livermore National Laboratory
Lawrence Livermore National Laboratory (LLNL) is a Federally funded research and development centers, federally funded research and development center in Livermore, California, United States. Originally established in 1952, the laboratory now is sponsored by the United States Department of Energy and administered privately by Lawrence Livermore National Security, LLC. The lab was originally established as the University of California Radiation Laboratory, Livermore Branch in 1952 in response to the detonation of the Soviet Union's first atomic bomb during the Cold War. It later became autonomous in 1971 and was designated a national laboratory in 1981. Lawrence Livermore Lab is primarily funded by the United States Department of Energy, U.S. Department of Energy and it is managed Privately held company, privately and operated by Lawrence Livermore National Security, LLC (a Public-private partnerships in the United States, partnership of the University of California, Bechtel, BW ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goddard Space Flight Center
The Goddard Space Flight Center (GSFC) is a major NASA space research laboratory located approximately northeast of Washington, D.C., in Greenbelt, Maryland, United States. Established on May 1, 1959, as NASA's first space flight center, GSFC employs about 10,000 civil servants and contractors. Named for American rocket propulsion pioneer Robert H. Goddard, it is one of ten major NASA field centers. GSFC is partially within the former Goddard, Maryland, Goddard census-designated place; it has a Greenbelt, Maryland, Greenbelt mailing address.CENSUS 2000 BLOCK MAP: GODDARD CDP (PDF). U.S. Census Bureau. Retrieved September 1, 2018. 1990 Census map of Prince George's County [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ion Propulsion
An ion thruster, ion drive, or ion engine is a form of electric propulsion used for spacecraft propulsion. An ion thruster creates a cloud of positive ions from a neutral gas by ionizing it to extract some electrons from its atoms. The ions are then accelerated using electricity to create thrust. Ion thrusters are categorized as either electrostatic or electromagnetic. Electrostatic thruster ions are accelerated by the Coulomb force along the electric field direction. Temporarily stored electrons are reinjected by a ''neutralizer'' in the cloud of ions after it has passed through the electrostatic grid, so the gas becomes neutral again and can freely disperse in space without any further electrical interaction with the thruster. By contrast, electromagnetic thruster ions are accelerated by the Lorentz force to accelerate all species (free electrons as well as positive and negative ions) in the same direction whatever their electric charge, and are specifically referred to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
