Aurora vs Maribor

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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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Maribor (UK: MARR-ib-or, US: MAR-, Slovene: [ˈmáːɾibɔɾ] (listen); also known by other historical names) is the second-largest city in Slovenia and the largest city of the traditional region of Lower Styria. It is also the seat of the City Municipality of Maribor, the seat of the Drava statistical region and the Eastern Slovenia region. Maribor is also the economic, administrative, educational, and cultural centre of eastern Slovenia. Maribor was first mentioned as a castle in 1164, as a settlement in 1209, and as a city in 1254.

Like most Slovene ethnic territory, Maribor was under Habsburg rule until 1918, when Rudolf Maister and his men secured the city for the State of Slovenes, Croats and Serbs, which then joined the Kingdom of Serbia to form the Kingdom of Yugoslavia. In 1991 Maribor became part of independent Slovenia. Maribor, along with the Portuguese city of Guimarães, was selected the European Capital of Culture for 2012.

Source: Wikipedia