Probe ship

Probe ships were a type of spacecraft used by the Morestrans. Controller Salamar captained a probe ship that travelled to Zeta Minor to make contact with Professor Sorenson's expedition, who had not been heard from since their arrival on the planet.

The Doctor's TARDIS was brought onboard and kept in a quarantined area. In order to recapture the Fourth Doctor and Sarah Jane Smith, an oculoid was deployed from the probe ship.

When the craft attempted to take off, the cyclostimulators failed and the anti-matter creature attacked, killing several crew members. On the Doctor's advice, the force field was linked to the atomic accelerator, repelling the creature.

Only by jettisoning the minerals taken from Zeta Minor was the probe ship able to leave, the anti-matter creature preventing its escape until the canister Sorenson placed the minerals in was restored to it. (TV: Planet of Evil)