Aurora vs Pardubice

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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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Pardubice (Czech pronunciation: [ˈpardubɪtsɛ] (listen); German: Pardubitz) is a city in the Czech Republic. It has about 92,000 inhabitants. It is the capital city of the Pardubice Region and lies on the river Elbe, 96 kilometres (60 mi) east of Prague. The historic centre of Pardubice is well preserved and historically significant and is protected by law as urban monument reservation.

Factories include the Synthesia chemical factory, an oil refinery Paramo, a heavy machinery factory and an electronic equipment plant. The city is well known for its sport events, which include the Great Pardubice Steeplechase in horse racing, the Golden Helmet of Pardubice in motorcycle racing, and the Czech Open in golf and chess.

Source: Wikipedia