Quaoar - Dwarf Planet Candidate & Kuiper Belt Object

The video introduces Quarrer, a dwarf planet candidate in the Kuiper Belt, discovered on June 4, 2002, by astronomers Gentry Hero and Michael Bronson. Initially designated as 2002 LM 60, Quarrer is roughly half the size of Pluto and has a nearly circular orbit around the sun, taking 285 Earth years to complete. Its surface is composed of crystalline ice and ammonia hydrate. Quarrer has a moon named Weywot, discovered in 2006. The video encourages viewers to explore more trans-Neptunian objects.

What significant findings were discovered on Quarrer's surface?

What is the estimated size of Quarrer's moon?