Auroras, also known as the Northern or Southern Lights, are natural light displays that occur in the polar regions of the Earth. They are caused by energetic particles from the sun, known as solar wind, interacting with the Earth's magnetic field and atmosphere.
When these charged particles collide with the atoms and molecules in the Earth's upper atmosphere, they excite them and cause them to emit light. The colors of the aurora depend on the type of atom or molecule being excited and the altitude at which the collision occurs. Green and red auroras are caused by excited oxygen atoms, while blue and purple auroras are caused by excited nitrogen molecules.
Auroras typically occur in a band around the magnetic poles, which is why they are most commonly seen in the high-latitude regions such as Norway, Sweden, Finland, Canada, and Alaska. They are most visible during the winter months when the nights are longer and darker, and can be seen from the ground or from space.
Auroras are not harmful to humans, but they can disrupt satellite and radio communications, as well as power grids. They are also considered to be one of the most beautiful natural phenomena on Earth, and are a popular attraction for tourists and photographers alike
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2. Northern lights (or) Aurora borealis
The two types of auroras are called aurora borealis and aurora australis — which mean
northern lights and southern lights.
The northern lights, one of several astronomical phenomena called polar lights (aurora
polaris), are shafts or curtains of colored light visible on occasion in the night sky. ... Northern
lights are also called by their scientific name, aurora borealis, and southern lights are called
aurora australis..
3. Southern lights (or) aurora australis
The southern lights are the shimmering display of lights that sometimes appears in
Earth's Southern Hemisphere. The phenomenon is also called aurora australis (the word
australis is Latin for austral, which simply means “southern”). ... And the southern lights are
not the only aurora on Earth
4. Difference between northern lights and
southern lights
The main difference? One occurs near the south pole, and the others at the north. The scientific
name for the northern lights is Aurora Borealis, while the scientific name for the southern
lights is Aurora Australis
5. Best places to see northern lights
Fairbanks, Alaska. In Fairbanks, Alaska, the sky glows with the aurora borealis. ...
Yellowknife, Canada. The aurora borealis spreads out above Prosperous Lake in Yellowknife,
Canada. ...
Tromsø, Norway. ...
Northern Sweden and Finland. ...
Greenland. ...
Tasmania and New Zealand.
6. Best places to see southern lights
Queenstown, New Zealand.
Mount Wellington, Tasmania.
Victoria, Australia.
Antarctica & South Georgia Island.
