Aurora vs Calgary

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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).

The resulting ionization and excitation of atmospheric constituents emit light of varying color and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of acceleration imparted to the precipitating particles. Precipitating protons generally produce optical emissions as incident hydrogen atoms after gaining electrons from the atmosphere. Proton auroras are usually observed at lower latitudes.

Source: Wikipedia

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Calgary ( (listen)) is a city in the western Canadian province of Alberta. It is situated at the confluence of the Bow River and the Elbow River in the south of the province, in an area of foothills and prairie, about 80 km (50 mi) east of the front ranges of the Canadian Rockies, roughly 299 km (186 mi) south of the provincial capital of Edmonton and approximately 240 km (150 mi) north of the Canada–United States border. The city anchors the south end of the Statistics Canada-defined urban area, the Calgary–Edmonton Corridor.The city had a population of 1,285,711 in 2019, making it Alberta's most-populous city and the most-populous in western Canada. In 2016, Calgary had a metropolitan population of 1,392,609, making it the fourth-largest census metropolitan area (CMA) in Canada and second-largest in western Canada (after Vancouver).

Calgary's economy includes activity in the energy, financial services, film and television, transportation and logistics, technology, manufacturing, aerospace, health and wellness, retail, and tourism sectors. The Calgary Metropolitan Region is home to Canada's second-highest number of corporate head offices among the country's 800 largest corporations. In 2015 Calgary had the highest number of millionaires per capita of any major Canadian city. In 1988 it became the first Canadian city to host the Winter Olympic Games. The Economist Intelligence Unit ranked Calgary the most livable city in North America in both 2018 and 2019. Calgary has been a top 5 contender for this title for the last 10 years. Calgary was also ranked the best city in the world for drivers in 2019.

Source: Wikipedia