Valencia vs Aurora

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Valencia (Spanish: [baˈlenθja]), officially València (Valencian: [baˈlensia] (locally) or [vaˈlensia]), is the capital of the autonomous community of Valencia and the third-largest city in Spain after Madrid and Barcelona, surpassing 800,000 inhabitants in the municipality. The wider urban area also comprising the neighbouring municipalities has a population of around 1.6 million. Valencia is Spain's third-largest metropolitan area, with a population ranging from 1.7 to 2.5 million depending on how the metropolitan area is defined. The Port of Valencia is the 5th-busiest container port in Europe and the busiest container port on the Mediterranean Sea. The city is ranked as a Gamma-level global city by the Globalization and World Cities Research Network.Valencia was founded as a Roman colony by the consul Decimus Junius Brutus Callaicus in 138 BC and called Valentia Edetanorum. In 714, Moroccan and Arab Moors occupied the city, introducing their language, religion and customs; they implemented improved irrigation systems and the cultivation of new crops as well. Valencia was the capital of the Taifa of Valencia. In 1238 the Christian king James I of Aragon conquered the city and divided the land among the nobles who helped him conquer it, as witnessed in the Llibre del Repartiment.

He also created the new Kingdom of Valencia, which had its own laws (Furs), with Valencia as its main city and capital. In the 18th century Philip V of Spain abolished the privileges as punishment to the kingdom of Valencia for aligning with the Habsburg side in the War of the Spanish Succession. Valencia was the capital of Spain when Joseph Bonaparte moved the Court there in the summer of 1812. It also served as the capital between 1936 and 1937, during the Second Spanish Republic. The city is situated on the banks of the Turia, on the east coast of the Iberian Peninsula, fronting the Gulf of Valencia on the Mediterranean Sea. Its historic centre is one of the largest in Spain, with approximately 169 ha (420 acres). Due to its long history, Valencia has numerous celebrations and traditions, such as the Fallas, which were declared Fiestas of National Tourist Interest of Spain in 1965 and an Intangible cultural heritage by UNESCO in November 2016. Joan Ribó from Compromís has been the mayor of the city since 2015.

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