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What is the aurora? - NASA

What is the aurora? Named for the Roman goddess of dawn, the aurora is a mysterious and unpredictable display of light in the night sky. The aurora borealis and aurora australis often called the northern lights and southern lights are common occurrences at high northern and southern latitudes, less frequent at mid-latitudes, and seldom seen near the equator. While usually a milky greenish color, auroras can also show red, blue, violet, pink, and white. These colors appear in a vari-ety of continuously changing shapes.

Earth (away from the Sun), the more intense, dynamic and beautiful auroras occur near midnight. For many years, it was thought that the particles in the aurora came directly from the Sun because great auroral displays often occurred a few days after large eruptions on …

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What causes the aurora? - NASA

pwg.gsfc.nasa.gov

What causes the aurora? The “northern lights” are caused by collisions between fast-moving particles (electrons) from space and the oxygen and nitrogen gas in our atmosphere.

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