Did you know?
Mass of Umbriel (moon of Uranus) (1.17 sextillion kg) is 400 x Mass of Puck (moon of Uranus) (2.9 quintillion kg)
Tweet this comparison
Other land in Mongolia (2011) (310,000 km^2)
"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine
Click here to learn more about it.
Click here for Podcast: Andrew Elliott interviewed for New Books Network.