Novo Hamburgo vs Aurora

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Novo Hamburgo (Portuguese for New Hamburg; German: Neu-Hamburg) is a municipality in the southernmost Brazilian state of Rio Grande do Sul, located in the metropolitan area of Porto Alegre, the state capital. As of 2018, its population was 246,452. The city covers an area of 217 km2 (84 sq mi), and the average temperature is 19 °C (66 °F), which is mild for the region. The Sinos River runs through the urban area. Consolidated by German immigrants, the city was named after Hamburg, Germany.

Novo Hamburgo's population is still predominantly of German descent. In the 1980s, Novo Hamburgo received the nickname of "the national capital of shoes", attracting many athletes, tracks and companies connected to the sport. Nowadays, the city is the industrial centre of the Sinos River Valley, the economy of which is based mainly on the manufacture of shoes and the associated leather goods supply chain.

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