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.

Who were the astronomers that discovered Quarrer?

• Samuel Aschen and Michael Bronson

• Gentry Hero and Michael Bronson

• Gentry Hero and Michael Lee Brown

• Samuel Aschen and Michael Lee Brown

What is the provisional designation of Quarrer before its name was approved?

• 2002 LM 80

• 2002 LM 70

• 2002 LM 50

• 2002 LM 60

How long does it take for Quarrer to complete one orbit around the Sun?

• 200 Earth years

• 285 Earth years

• 300 Earth years

• 250 Earth years

What surprising substances were found on Quarrer's surface?

• Crystalline ice and ammonia hydrate

• Methane and carbon dioxide

• Water and oxygen

• Sulfur and nitrogen

What is the name of Quarrer's moon?

• Charon

• Hydra

• Weywot

• Nix