Aurora | |
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State | Missouri |
Country | United States |
Capital | |
Population | 7377 |
Postcode | 65605 |
An aurora (plural: auroras or aurorae), sometimes referred to as polar lights (aurora polaris), northern lights (aurora borealis), or southern lights (aurora australis), is a natural light display in the Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic).
Auroras are the result of disturbances in the magnetosphere caused by solar wind. These disturbances are sometimes strong enough to alter the trajectories of charged particles in both solar wind and magnetospheric plasma. These particles, mainly electrons and protons, precipitate into the upper atmosphere (thermosphere/exosphere).
Saskatoon | |
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State | |
Country | |
Capital | |
Population | 222189 |
Saskatoon () is the largest city in the Canadian province of Saskatchewan. It straddles a bend in the South Saskatchewan River in the central region of the province. It is located along the Trans-Canada Yellowhead Highway, and has served as the cultural and economic hub of central Saskatchewan since its founding in 1882 as a Temperance colony.With a 2016 census population of 246,376, Saskatoon is the largest city in the province, and the 17th largest Census Metropolitan Area in Canada, with a 2016 census population of 295,095. The City of Saskatoon has estimated its population to be 278,500 as of July 2018, while Statistics Canada has estimated the CMA's population to be 330,674 as of 2019.Saskatoon is home to the University of Saskatchewan, the Meewasin Valley Authority which protects the South Saskatchewan River and provides for the city's popular riverbank park spaces, and Wanuskewin Heritage Park, a National Historic Site of Canada and UNESCO World Heritage applicant representing 6,000 years of First Nations history.
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