Did you know?
Mass of Proxima Centauri, nearest star to our Sun (244.6 octillion kg) is 50 thousand x Mass of Venus (4.87 septillion kg)
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Pop. of Madrid, Spain (3.21 million people)
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.