Did you know? Mass of a regulation basketball (624 g) is 250 x Mass of a USA penny (1c piece) (2.5 g)
A parsec (31 trillion km)
/fact/a-parsec
Link
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.