Venus

Venus (or Sol II) was the second planet from Sol. Although generally believed not only uninhabited but uninhabitable by the scientists of 20th and 21st century Earth, in fact several civilizations have called the planet home. Venus was the origin of Venusian aikido and a Venusian lullaby, presumably both created by the native Venusian race. Venus is around 26,000,000 miles away from Earth.

Venusian spearmint also grew on the planet, and is used as a toothpaste flavouring. (DW: The Shakespeare Code)

Venus was also the final obstacle on a race course set up by the Eternals. (DW: Enlightenment)

In the year 200,000, sandstorms on a planet known as New Venus kill 200 sentients in the Archipelago. (DW: The Long Game)