Hycean planet

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

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.

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Science and technology

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What Wikipedia says

A hycean planet ( HY-shən) is a hypothetical type of planet with liquid water oceans underneath a hydrogen-rich atmosphere. They are thought to offer conditions favorable to life.

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

Image: Pablo Carlos Budassi, CC BY-SA 4.0, via Wikimedia Commons.