Last seen in:
Related Clues:
- Realm surrounded by the Styx
- Nonspeaking Disney character
- It has only one-sixth of the mass of Earth's moon
- Was in possession of drugs for underworld
- Yama counterpart
- Titular Greek god of an Anais Mitchell musical
- Planet in a textbook from 1997 but not 2007
- Ruler of a mythological underworld
- Planet once placed outside large observatory's entrance
- Disney character who may have been named in 1931 for a newly discovered planet
- Once called a planet, now one of many objects in the Kuiper Belt
- Greek god of the Underworld
- Ninth planet, until 2006
- Until 2006, the ninth planet from the Sun
- Largest dwarf planet