Object
Hostile Extraterrestrial Spaceship (The Invasion Part 4)
Primary aggressor in The Invasion Part 4; fires missiles at the TARDIS and is monitored by UNIT as the initial military threat. Operates independently of the Cybermen and is distinct from later-phase Cybermen spacecraft.
2 appearances
Purpose
Launch missiles at intruders like the TARDIS to neutralize threats
Significance
Doctor's revelation ties local UFO sightings and Vaughn's conspiracy to an interstellar invasion, shifting UNIT's focus from rescue to cosmic defense and prompting retrieval of photographic evidence
Appearances in the Narrative
When this object appears and how it's used