Question: where are all the star cores?
Answer: Six can be found at Vault-Tec: Among the Stars. ...  Six can be found at RobCo Battlezone. ...  Four can be found at Starlight Interstellar Theater. ...  Seven can be found at Nuka-Galaxy. ...  Five are scattered around Starport Nuka. ...  Two are located in other parts of the Galactic Zone.