Aurora Aurora An aurora (plural: auroras or aurorae), sometimes referred to as polar lights, northern lights (aurora borealis) or southern lights (aurora australis), is a natural light display in the Earth's sky, predominantly seen in the high-latitude regions (around the Arctic and Antarctic). Auroras are produced when the magnetosphere is sufficiently disturbed by the solar wind that the trajectories of charged particles in both solar wind and magnetospheric plasma, mainly in the form of electrons and protons, precipitate them into the upper atmosphere (thermosphere/exosphere) due to Earth's magnetic field, where their energy is lost. The resulting ionization and excitation of atmospheric
Aurora Borealis (painting) pigment built together through thin applications, leaving the viewer unaware of fracture between strokes. These works are also built around the tones of "ochre, brown, gray going to blue or green, and green" at the expense of the full value of color. Completed in New York that winter, "Aurora Borealis" was exhibited publicly in London in 1865 as a triumvirate with two paintings by Church of Ecuadoran volcanoes: "Cotopaxi" (his 1862 painting of an eruption) and "Chimborazo" (his 1864 reprise of the dormant mountain that had been the subject of his 1858 masterwork "Heart of the Andes"). Created at the