Huntsville vs Aurora

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Huntsville is a city in the Appalachian region of northern Alabama. It is the county seat of Madison County but extends west into neighboring Limestone County and south into Morgan County.It was founded in 1805 and became an incorporated town in 1811. The city grew across nearby hills north of the Tennessee River, adding textile mills, then munitions factories, NASA's Marshall Space Flight Center and the United States Army Aviation and Missile Command nearby at the Redstone Arsenal. The National Trust for Historic Preservation named Huntsville to its "America's Dozen Distinctive Destinations for 2010" list.

The city's population was 180,105 in 2010, making it Alabama's fourth-largest city. Huntsville is the largest city in the five-county Huntsville-Decatur-Albertville, AL Combined Statistical Area. The Huntsville metropolitan area's population was 417,593 in 2010, making it the second most populous metropolitan area in the state. The Huntsville metro's population reached 462,693 by 2018.

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