After talking to Piscilla ? there will be more light. Find the lab.
Walk up or left in the scene.
The discontinuity looks interesting... Interact with it.
Nice find! Now, open the sliding door.
It is quite dark in there. But you can read the hotspots. Interact with the strange machine.
Talk to Otis until he tells you where the laboratory is ? . Talk to Piscilla, after Otis tells you about the lab.
The lab is behind the huge imposing door.
Okay. But your goal is to open the huge imposing door.
Maybe now would be a good time to start the engine?