Reggio nell'Emilia vs Aurora

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Reggio nell'Emilia (US: , Italian: [ˈreddʒo nelleˈmiːlja; ˈrɛddʒo -] (listen); Emilian: Rèz; Latin: Regium Lepidi), also referred to as Reggio Emilia, Reggio di Lombardia or Reggio by its inhabitants, is a city in northern Italy, in the Emilia-Romagna region. It has about 171,944 inhabitants and is the main comune (municipality) of the Province of Reggio Emilia.

The inhabitants of Reggio nell'Emilia are called Reggiani, while the inhabitants of Reggio di Calabria, in the southwest of the country, are called Reggini. The old town has a hexagonal form, which derives from the ancient walls, and the main buildings are from the 16th–17th centuries. The commune's territory lies entirely on a plain, crossed by the Crostolo stream.

Source: Wikipedia

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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