also called the Aurora Borealis, are a natural light display in the night sky, mostly seen in high-latitude regions near the Arctic.
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They happen when charged particles from the Sun (solar wind) collide with gases in Earth’s atmosphere. These collisions release energy as light, creating those glowing waves and curtains in the sky.
Why are they different colors?
Green – the most common (oxygen at lower altitudes)
Red – oxygen higher up
Purple/blue – nitrogen
They’re most visible in places close to the Arctic Circle, like:
Canada
Norway
Iceland
Alaska
There’s a southern version too, called the Aurora Australis, visible near Antarctica.
