Metebelis III

Metebelis III was a famous blue planet in the Acteon Galaxy. The Third Doctor had attempted to reach Metebelis III several times during his tenure as UNIT's scientific advisor on 20th century Earth, finally succeeding and meeting some of the dangerous native wildlife.


 * In The Green Death, the Doctor said Metebelis III was located in the Acteon Cluster. This may be another name for the Acteon Galaxy or may be a specific location in the Acteon galaxy.

Astronomical data
The blue moon of Metebelis III gave the whole planet a blue tint at night. It had many different habitats, including desert plains, green forests and mountain ranges. Native species included a giant snake, a species of giant bird and an intelligent, if primitive, species. (TV: The Green Death) It was later colonised by humans. (TV: Planet of the Spiders)

The blue crystals of Metebelis III could break hypnotic spells and mind control. The Doctor used the crystal to break the hypnosis of the computer called BOSS. (TV: The Green Death) They could also enhance intelligence and psychic powers. Another type of stone on the planet could counteract the energy produced by the blue crystals. (TV: Planet of the Spiders)

The 11th doctor used a Metebelis Crystal in Hide to open and hold open a wormhole to a pocket universe and rescue an early time traveller.

History
The Doctor visited Metebelis III at an unknown time, when he stole a crystal and was attacked by wildlife. (TV: The Green Death)

At some time in the far future, a human starship crash landed there. Humans and sheep survived the trip, as did some spiders. Over a millennium, the crystals mutated the spiders into the Eight Legs. They enslaved the humans, harvested and ate them.

The Eight Legs planned to take over the rest of the universe, but required all of the blue crystals. The Doctor's theft of one of the crystals caused the Great One to send her minions to Earth to retrieve it. The series of events which followed led to the replacement of the crystal, which flooded the body of the Doctor and the Great One with radiation. This caused the death of the Great One and the regeneration of the Doctor into his fourth incarnation. (TV: Planet of the Spiders)

Iris Wildthyme encountered the Eight Legs on the planet with her companion Timmy. However, Wildthyme had a habit of claiming the Doctor's adventures happened to her so the truth of this is unclear. (PROSE: The Scarlet Empress)

Feeling slightly depressed, the Seventh Doctor visited Metebelis III to try and revive his spirits, hoping the beauty of the planet would give him something to appreciate and the danger would revive his interest in life. This goal was almost too successful when he was captured and nearly eaten by one of the surviving Eight Legs, but he was saved by his next incarnation as he paid a brief visit to his previous self. The Eighth Doctor used the Tissue Compression Eliminator he had recently stolen from the Master to kill the Eight Legs before it could eat them both. (PROSE: The Eight Doctors)

The Eighth Doctor travelled to Metebelis III with Bazima. (PROSE: Transmission Ends)

Other references

 * Bernice Summerfield once visited a bar on Metebelis III. (PROSE: Blood Harvest)
 * During an encounter with Faction Paradox, the Doctor's history was changed so the Third Doctor regenerated on the planet Dust instead. The Eighth Doctor eventually learned the truth about the Faction's interference thanks to the interference of the TARDIS, allowing him to restore his original history and ensure the circumstances of his third incarnation's death occurred on Metebelis III. (PROSE: Interference - Book One, Interference - Book Two, The Ancestor Cell)
 * Metebelis III was mentioned by Sarah Jane Smith, when just before her wedding she wondered where would she send the Doctor's invite. (TV: The Wedding of Sarah Jane Smith)
 * Jo said to Sarah Jane that even if the Doctor died on somewhere as far as Metebelis III, she would feel it. (TV: Death of the Doctor)