Bahía Blanca vs Aurora

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Bahía Blanca (Spanish pronunciation: [baˈi.a ˈβlaŋka]; English: White Bay) is a city in the southwest of the province of Buenos Aires, Argentina, by the Atlantic Ocean, and is the seat of government of Bahía Blanca Partido. It had 301,572 inhabitants according to the 2010 census [INDEC]. It is the principal city in the Greater Bahía Blanca urban agglomeration. The city has an important sea port with a depth of 45 feet (15 m), kept constant upstream almost all along the length of the bay, where the Napostá Stream drains.

Bahía Blanca means "White Bay". The name is due to the typical colour of the salt covering the soil surrounding the shores. The bay (which is actually an estuary) was seen by Ferdinand Magellan during his first circumnavigation of the world on the orders of Charles I of Spain, in 1520, looking for a canal connecting the Atlantic to the Pacific Ocean along the coasts of South America.

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