Polar night

Rarity: Rare

A topic known well beyond its field, found in many languages.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

Polar night is a phenomenon that occurs in the northernmost and southernmost regions of Earth when the Sun remains below the horizon for more than 24 hours. This only occurs inside the polar circles.

Excerpt from the Wikipedia article “Polar night”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Bjørn Christian Tørrissen, CC BY-SA 3.0, via Wikimedia Commons.