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Circumference of Mars (21,340 km) is 5 x Length of Chile - North-South (4,270 km)
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Other land in Burkina Faso (2016) (146 km^2)
If this was a standard unit ...
Yes, there's now a book based on these numbers. Oxford University Press: July 2018.
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.