Did you know?
Mass of the Earth (5.97 septillion kg) is 40 x Mass of Ganymede (moon of Jupiter) (148.2 sextillion kg)
Tweet this comparison
Forest in Belgium (2011) (6,840 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.