Editing 2439: Solar System Cartogram
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Interestingly, the side of the Earth shown includes China and India, two countries that alone account for over a quarter of all humans on Earth. | Interestingly, the side of the Earth shown includes China and India, two countries that alone account for over a quarter of all humans on Earth. | ||
β | The title text states that Randall | + | The title text states that even though Randall counts every active [[:Category:Mars rovers|Mars rover]] as a person (for sentimental reasons), they are almost nothing compared to Earth's roughly 7,900,000,000 persons. Mars therefore is still nothing more than a dot compared to the Earth. There are a total of five rovers at the time of the comic's publication; in chronological order, they are Sojourner, Spirit and Opportunity, Curiosity, and Perseverance. Only the latter two were functional at the time of the comic's publication, giving Mars a rover population of two. A third rover, China's {{w|Tianwen-1}}, landed on Mars on 2021 May 14, making for an all-time high of three active rovers. |
Mars rovers are a [[:Category:Mars rovers|recurring theme]] on xkcd and only a few weeks earlier, a comic named [[2433: Mars Rovers]] was released. This is the fourth comic this year to reference Mars Rovers. | Mars rovers are a [[:Category:Mars rovers|recurring theme]] on xkcd and only a few weeks earlier, a comic named [[2433: Mars Rovers]] was released. This is the fourth comic this year to reference Mars Rovers. |