| Rigel 7
| Location Information
Rigel 7 is a planet home to the Rigellians, including Kang and Kodos. They speak Rigellian, which by coincidence, sounds exactly the same as English. The other inhabitants of Rigel 7 seem to be similar in appearance to Kang and Kodos, and include, amongst others, Serak the Preparer, and presumably Mr. Sulu, the Submarine operator of the U.S.S Jebediah.
People from Earth travel to Rigel 7 in order to obtain Hillarium. Eventually, a massive war between the Rigellians and nature and the humans takes place with the Rigellians winning the war and all the humans being defeated.
The Simpsons: Tapped Out
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Behind the Laughter
The planet is a parody of the one of the same name from Star Trek.
- THOH – "Treehouse of Horror IX" (mentioned)
- Episode – "'Scuse Me While I Miss the Sky" (mentioned)
- Episode – "Simpson Tide" (mentioned)
- THOH – "Treehouse of Horror XXII" (In the Na'Vi segment)
- Episode – "Holidays of Future Passed" (mentioned)
- THOH – "Treehouse of Horror XXV"
- Episode – "The Man Who Came to Be Dinner"
- Comic story – Hillbilly Abductshun (mentioned)
- Comic story – Fright Before Christmas
- Video game – The Simpsons: Tapped Out