Charon

Charon is a moon of Pluto, (in the Greek mythology, Charon is the ferryman of Hades who carries souls of the newly deceased across the river Styx).

The badge is unlocked by collecting 20.000 Km, the distance between the two objects.

One of the many badges that you can unlock in Passenger, a travel log app I'm designing for 100grams. Check it out! psngr.co