Star Control

Star Control is a side quest in the Fallout 4 add-on Nuka-World.

Detailed walkthrough
Upon approaching the Galactic Zone, the player will notice a large amount of corpses and destroyed robots lying around outside the entrance. One of the bodies is that of Tiana, who has a holotape on her. Read the tape to prompt the finding of the Star Control mainframe, located at Starport Nuka near the center of the zone.

Inside the Galactic Zone, hostile robots abound

Once through its glass door, (after admiring that Quantum X-01 armor) the back wall has the mainframe. It requires a Star Core to boot up, which can be found in the hand of the nearby corpse of Kendell Alston. Affix the Core to one of the many empty panels surrounding the mainframe to activate it.

From here you will be required to locate the remainder of the Star Cores. There are 35 in total, including the one Kendall was holding.

A Star Core can be located to the right of the Dry Rock Gulch's refreshment stand.