xkcd xkcd.com xkcd.com: A webcomic of romance and math humor.Landscape Featureson March 18, 2026 at 04:00 Rotational Gravityon March 16, 2026 at 04:00 Planets and Bright Starson March 13, 2026 at 04:00 Subduction Retrievalon March 11, 2026 at 04:00 Landscape FeaturesRotational GravityPlanets and Bright StarsSubduction Retrieval
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