The density of objects drops to almost zero at this region's namesake cliff.
The density of objects drops to almost zero at this region's namesake cliff. Most of the objects found here are called cubewanos ("KYOO-bee-WAHN-ohs"). The Oort cloud ends at the beginning of this region's elliptic. For 10 points, identify this area at the edge of the solar system that houses thousands of short period comets, Eris, and Pluto.
The density of objects drops to almost zero at this region's namesake cliff.
Edgeworth-{Kuiper} belt [or Edgeworth-Kuiper Disc]