The Cytherian probe was a probe built by the Cytherians to seek out other species and bring them to their homeworld. The probe was able to move at impulse and warp velocities without emitting particles or generating a subspace field, indicating its propulsion technology to be utterly alien to the Federation. It was highly resistant to phasers but could be destroyed by a number of maximum-yield photon torpedoes. For more information on this studio model, see TNG studio models.