Aurora Colorado Electronic Publishing Agreement
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Aurora borealis. noun. bright bands of color around the North Pole caused by solar wind and the Earth's magnetic field. Also called the northern lights.
Most Northern Lights are green in colour but sometimes you'll see a hint of pink, and strong displays might also have red, violet and white colours, often seen by aurora chasers on Northern Lights trips. The reason for all these colours lies in the composition of our earth's atmosphere.
Aurora is a mystical and romantic name that means "dawn" in Latin. An aurora also refers to a natural light display in the Earth's sky called the aurora polaris, or polar lights, visible only in high-latitude regions like the North and South Poles.
The most abundant gas is molecular nitrogen, and it radiates promptly in deep blue and red colors. Mixing these together gives purple. The bottom edge of a green auroral curtain gets this purple color when auroral elec-trons are accelerated to very high energy (Figures 7-8).
Aurora gained recognition with her debut extended play (EP), Running with the Wolves (2015), which contained the sleeper hit "Runaway". Later that year, she provided the backing track for the John Lewis Christmas advert, singing a cover of the Oasis song "Half the World Away".
Red Lights - Rare High Altitude Phenomenon Red is the rarest of the Northern Lights' colors and is created when solar particles collide with atomic oxygen at an altitude of over 241 kilometers (150 miles). At this altitude, the collisions are rare and produce a short-lived red flash.
Auroras can appear green, pink, dark red, blue, purple and even yellow!
The simple answer is that human eyes have difficulty perceiving the relatively ?faint? colors of the aurora at night.
