The Romulan science vessel was a type of Romulan science vessel in service during the mid-24th century, which was used to conduct standard and experimental research for the Romulan Star Empire, and notably by the Romulan Astrophysical Academy. (TNG: "The Next Phase"; VOY: "Eye of the Needle")
In early-2350, the science vessel Talvath, operating under the direction of the Dr. Telek R'Mor began an extended three-year scientific mission. The following year, the Talvath encountered a micro-wormhole in Sector 1385 of the Alpha Quadrant. It was here that its crew discovered the USS Voyager, which was located in the Delta Quadrant, however, twenty-years in the future. (VOY: "Eye of the Needle")
While normally fitted with a cloaking device, in 2368, a science vessel tested a new experimental interphase cloaking device. During the test, it experienced a forced chamber explosion in the resonator coil. One member of its crew, Parem, was phased out of reality by the device and all but seventy three of the crew died.
The ship was assisted and repaired by the USS Enterprise-D, who offered the science vessel a modified Federation subspace resonator to act as a new graviton generator, which limited the ship to warp two during its return to Romulan space. They also received a Federation computer core from the 2220s or 2230s, presumably to replace their own. (TNG: "The Next Phase")
Engine room Edit
The engine room section was located in the middle of the "head" of the science vessel. It contained a primary situation station in the center of the room, and associated consoles along the walls surrounding the room. The ship's engine core was located in the containment chamber, an adjacent room connected to the main engine room.
The core itself was a spherical in shape and contained within a small chamber which has a single open hatch. The room also contained the warp core ejection system's manual override, embedded in the floor. When ejected, the core is shot into space from the mid-dorsal section of the ship. (TNG: "The Next Phase")
Background information Edit
According to the script, it was "about half the size of the Enterprise," suggesting a length of approximately 300 meters.
The studio model is a modification and reuse of the Romulan scout ship seen in The Next Generation episode "The Defector". The Star Trek Customizable Card Game gives its name as Apnex, after the body of water on Romulus.