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
Stellaria borealis white petals. Some flowers lack petals and have only the five pointed green sepals. This plant is sometimes infected with the smut fungus "Microbotryum violaceum" ("Microbotyrum stellariae"), which causes its anthers to turn red. Stellaria borealis Stellaria borealis is a species of flowering plant in the pink family known by the common name boreal starwort. It has a circumboreal distribution, occurring throughout northern areas of the Northern Hemisphere. It occurs in many types of moist and wet habitat, including marshes, riverbanks, lakesides, floodplains, talus, ditches, and moist spots in forests and woodlands. It is quite variable in appearance, especially across