|
MacDonald Dettwiler
MDA Space Ltd. is a Canadian space technology company headquartered in Brampton, Ontario, Canada, that provides geointelligence, robotics and space operations, and satellite systems. History MDA Space (formerly MacDonald, Dettwiler and Associates) was founded in 1969 by John S. MacDonald and Vern Dettwiler in the basement of MacDonald's Vancouver home. The company became a subsidiary of Orbital Sciences Corporation (OSC) from the United States on 17 November 1995. MDA was primary contractor for, and took ownership of, the RADARSAT-2 Earth observation satellite. MDA bought the space robotics division of Spar Aerospace—manufacturer of the Canadarm—in March 1999, renaming it MD Robotics. The company completed the Mobile Servicing System (including the Canadarm2) for the International Space Station. OSC sold its entire stake in 2001. Nearly 70% was sold to a group of Canadian investors; the Ontario Teachers' Pension Plan (OTPP) became the largest shareholder with a 29% stak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Company
A public company is a company whose ownership is organized via shares of share capital, stock which are intended to be freely traded on a stock exchange or in over-the-counter (finance), over-the-counter markets. A public (publicly traded) company can be listed on a stock exchange (listing (finance), listed company), which facilitates the trade of shares, or not (unlisted public company). In some jurisdictions, public companies over a certain size must be listed on an exchange. In most cases, public companies are ''private'' enterprises in the ''private'' sector, and "public" emphasizes their reporting and trading on the public markets. Public companies are formed within the legal systems of particular states and so have associations and formal designations, which are distinct and separate in the polity in which they reside. In the United States, for example, a public company is usually a type of corporation, though a corporation need not be a public company. In the United Kin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maxar Technologies
Maxar Technologies Inc. is an American space technology company headquartered in Westminster, Colorado, United States, specializing in geospatial intelligence, Earth observation, and on-orbit servicing satellites, satellite products, and related services. DigitalGlobe and MDA Holdings Company merged to become Maxar Technologies on October 5, 2017. Maxar Technologies is the parent holding company of Maxar Space Systems, headquartered in Palo Alto, California, US; and Maxar Intelligence, headquartered in Westminster, Colorado, US. From 2017 to 2023, it was dual-listed on the Toronto Stock Exchange and New York Stock Exchange as MAXR. In May 2023, Maxar was acquired by private equity firm Advent International, in an all-cash transaction worth $6.4 billion. Maxar's satellite data was used by Ukraine as part of its defense against Russia's invasion of its territory. In March 2025, Maxar was pressurized by the Donald Trump administration to shut down Ukraine's access to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manchester
Manchester () is a city and the metropolitan borough of Greater Manchester, England. It had an estimated population of in . Greater Manchester is the third-most populous metropolitan area in the United Kingdom, with a population of 2.92 million, and the largest in Northern England. It borders the Cheshire Plain to the south, the Pennines to the north and east, and the neighbouring city of Salford to the west. The city borders the boroughs of Trafford, Metropolitan Borough of Stockport, Stockport, Tameside, Metropolitan Borough of Oldham, Oldham, Metropolitan Borough of Rochdale, Rochdale, Metropolitan Borough of Bury, Bury and City of Salford, Salford. The history of Manchester began with the civilian settlement associated with the Roman fort (''castra'') of Mamucium, ''Mamucium'' or ''Mancunium'', established on a sandstone bluff near the confluence of the rivers River Medlock, Medlock and River Irwell, Irwell. Throughout the Middle Ages, Manchester remained a ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stevenage
Stevenage ( ) is a town and borough in Hertfordshire, England, about north of London. Stevenage is east of junctions 7 and 8 of the A1(M), between Letchworth Garden City to the north and Welwyn Garden City to the south. In 1946, Stevenage was designated the United Kingdom's first New Town under the New Towns Act. Toponymy "Stevenage" may derive from Old English ''stiþen āc'' / ''stiðen āc'' / ''stithen ac'' (various Old English dialects cited here) meaning "(place at) the stiff oak". The name was recorded as ''Stithenæce'' in 1060 and as ''Stigenace'' in the Domesday Book in 1086. History Pre-Conquest Stevenage lies near the line of the Roman road from Verulamium to Baldock. Some Romano-British remains were discovered during the building of the New Town, and a hoard of 2,000 silver Roman coins was discovered during housebuilding in the Chells Manor area in 1986. Other artefacts included a dodecahedron toy, fragments of amphorae for imported wine, bone hairpi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Didcot
Didcot ( ) is a railway town and Civil parishes in England, civil parish in South Oxfordshire, England, located south of Oxford, east of Wantage and north west of Reading, Berkshire, Reading. Historically part of Berkshire, the town is noted for its railway heritage, Didcot Parkway railway station, Didcot station opening as a junction station on the Great Western Main Line in 1844. Today the town is known for the Didcot Railway Centre, railway museum and as the gateway town to the Science Vale: three large science and technology centres in the surrounding villages of Milton (Milton Park), Culham (Culham Science Centre) and Harwell (Harwell Science and Innovation Campus which includes the Rutherford Appleton Laboratory). History Ancient and Medieval eras The area around present-day Didcot has been inhabited for at least 9,000 years. A large archaeological dig between 2010 and 2013 produced finds from the Mesolithic, Neolithic, British Iron Age, Iron Age and British Bronze A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halifax, Nova Scotia
Halifax is the capital and most populous municipality of the Provinces and territories of Canada, Canadian province of Nova Scotia, and the most populous municipality in Atlantic Canada. As of 2024, it is estimated that the population of the Halifax Census Metropolitan Area, CMA was 530,167, with 348,634 people in its urban area. The regional municipality consists of four former municipalities that were Amalgamation (politics), amalgamated in 1996: History of Halifax (former city), Halifax, Dartmouth, Nova Scotia, Dartmouth, Bedford, Nova Scotia, Bedford, and Halifax County, Nova Scotia, Halifax County. Halifax is an economic centre of Atlantic Canada, home to a concentration of government offices and private companies. Major employers include the Canadian Armed Forces, Department of National Defence, Dalhousie University, Nova Scotia Health Authority, Saint Mary's University (Halifax), Saint Mary's University, the Halifax Shipyard, various levels of government, and the Port of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richmond, British Columbia
Richmond is a city in the coastal Lower Mainland region of British Columbia, Canada. Mainly a suburban city, it occupies almost the entirety of Lulu Island (excluding Queensborough, New Westminster, Queensborough), between the two estuarine distributaries of the Fraser River. Encompassing the adjacent Sea Island (British Columbia), Sea Island (where the Vancouver International Airport is located) and several other smaller islands and uninhabited islets to its north and south, the suburb neighbours Vancouver and Burnaby on the Burrard Peninsula to the north, New Westminster and Annacis Island to the east, Delta, British Columbia, Delta to the south, and the Strait of Georgia to the west. The indigenous Coast Salish peoples were the first people to inhabit the area of modern-day Richmond, with the Musqueam Indian Band, Musqueam Band naming the site near Terra Nova "" or "boiling point". Today, East Asian Canadians make up a majority of Richmond's population, along with the Contine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montreal
Montreal is the List of towns in Quebec, largest city in the Provinces and territories of Canada, province of Quebec, the List of the largest municipalities in Canada by population, second-largest in Canada, and the List of North American cities by population, ninth-largest in North America. It was founded in 1642 as ''Fort Ville-Marie, Ville-Marie'', or "City of Mary", and is now named after Mount Royal, the triple-peaked mountain around which the early settlement was built. The city is centred on the Island of Montreal and a few, much smaller, peripheral islands, the largest of which is Île Bizard. The city is east of the national capital, Ottawa, and southwest of the provincial capital, Quebec City. the city had a population of 1,762,949, and a Census geographic units of Canada#Census metropolitan areas, metropolitan population of 4,291,732, making it the List of census metropolitan areas and agglomerations in Canada, second-largest metropolitan area in Canada. French l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ottawa
Ottawa is the capital city of Canada. It is located in the southern Ontario, southern portion of the province of Ontario, at the confluence of the Ottawa River and the Rideau River. Ottawa borders Gatineau, Gatineau, Quebec, and forms the core of the Ottawa–Gatineau census metropolitan area (CMA) and the National Capital Region (Canada), National Capital Region (NCR). Ottawa had a city population of 1,017,449 and a metropolitan population of 1,488,307, making it the list of the largest municipalities in Canada by population, fourth-largest city and list of census metropolitan areas and agglomerations in Canada, fourth-largest metropolitan area in Canada. Ottawa is the political centre of Canada and the headquarters of the federal government. The city houses numerous List of diplomatic missions in Ottawa, foreign embassies, key buildings, organizations, and institutions of Government of Canada, Canada's government; these include the Parliament of Canada, the Supreme Court of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kanata, Ontario
Kanata (, ) is a satellite city, satellite community and former city within Ottawa, Ontario. It is located about west of the city's Downtown Ottawa, downtown core. As of 2021, the former City of Kanata had a population of 98,938, with the Census geographic units of Canada#Population centres, population centre (which includes next-door Stittsville) having a population of 137,118. Before it was amalgamated into Ottawa in 2001, it was one of the fastest-growing cities in Canada and the fastest-growing community in Eastern Ontario. Located just to the west of the National Capital Commission Greenbelt (Ottawa), Greenbelt, it is one of the largest of several communities that surround central Ottawa. History Kanata did not originate as a typical historic town or village and the area was originally part of March Township, Ontario, March Township, was first settled by Europeans in the early 19th century. One site dating from this era is Horaceville, Ontario, Pinhey's Point. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low Earth Orbit
A low Earth orbit (LEO) is an geocentric orbit, orbit around Earth with a orbital period, period of 128 minutes or less (making at least 11.25 orbits per day) and an orbital eccentricity, eccentricity less than 0.25. Most of the artificial objects in outer space are in LEO, peaking in number at an altitude around , while the farthest in LEO, before medium Earth orbit (MEO), have an altitude of 2,000 km, about one-third of the Earth radius, radius of Earth and near the beginning of the Van Allen radiation belt#Inner belt, inner Van Allen radiation belt. The term ''LEO region'' is used for the area of space below an altitude of (about one-third of Earth's radius). Objects in orbits that pass through this zone, even if they have an apogee further out or are sub-orbital spaceflight, sub-orbital, are carefully tracked since they present a collision risk to the many LEO satellites. No human spaceflights other than the lunar missions of the Apollo program (1968-1972) have gone beyond L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telesat
Telesat, formerly Telesat Canada, is a Canadian satellite communications company (law), company founded on May 2, 1969. The company is headquartered in Ottawa. History Founding and privatization (1969-2005) Telesat began in 1969 as Telesat Canada, a Canadian Crown corporation created by an Act of Parliament. Telesat Canada launched Anik (satellite), Anik A1 in 1972 as the world's first domestic communications satellite in geostationary orbit operated by a commercial company; this satellite was retired from use in 1981. Until February 1979, Telesat had a legal monopoly on Ground station, Earth stations in Canada: any entity wishing to send or receive satellite signals had to sign a long-term lease with Telesat Canada for an Ground station, Earth station. Contracts for such leases were still enforced after the monopoly was ended. Telesat Canada was privatized and sold by the federal government to Bell Canada in 1998. Loral Space purchase (2006-2015) On December 18, 2006, Loral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
