Possible Clues:

• Certain dwarf planet
• The Greek goddess of discord, and the name of a jumping spider
• Dwarf planet with more mass than Pluto
• Greek deity of discord
• She threw the apple of discord, in Greek myth
• Golden apple goddess
• Deity of strife
• Apple of Discord thrower, in myth
• Celestial object beyond Pluto
• Astronomical discovery initially called Xena