Aurora vs Bolzano - Bozen

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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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Bolzano (Italian: [bolˈtsaːno] (listen) or [bolˈdzaːno]; German: Bozen (formerly Botzen), pronounced [ˈboːtsn̩]; Bavarian: Bozn; Ladin: Balsan or Bulsan) is the capital city of the province of South Tyrol in northern Italy. With a population of 108,245, Bolzano is also by far the largest city in South Tyrol and the third largest in Tyrol. The greater metro area has about 250,000 inhabitants and is one of the urban centers within the Alps.Bolzano is the seat of the Free University of Bozen-Bolzano, where lectures and seminars are held in English, German, and Italian. The city is also home to the Italian Army's Alpini High Command (COMALP) and some of its combat and support units.

In the 2014 version of the annual ranking of quality of life in Italian cities, Bolzano was ranked as the best.Along with other Alpine towns in South Tyrol, Bolzano engages in the Alpine Town of the Year Association for the implementation of the Alpine Convention. The Convention aims to promote and achieve sustainable development in the Alpine Arc. Consequently, Bolzano was awarded Alpine Town of the Year 2009. Bolzano is considered a bridge between North and South due to the three spoken languages in South Tyrol (Italian, German, and Ladin) and the confluence of Italian and German-Austrian culture.

Source: Wikipedia