Trip to the Stars

Trip to the Stars is a side quest in the Fallout 4 add-on Nuka-World.

Quick walkthrough
Gather 5 spacesuit costumes from the Vault-Tec: Among the Stars area of the Galactic Zone and bring them to Dara Hubbell. Follow the Hubologists to the Nuka-World junkyard or tell them you have cleared it already. Once there, collect the power distributor and some fusion cores and go to the UFO spaceship ride. Adding three cores, as Dara suggests, will result in a good end to the quest. However, adding the fourth core will result in the death of the Hubologists. If you choose to not kill them, Dara gives you 100 ammo for the alien gun, and all the Hubologists relocate to the large barn northeast of the UFO.

Reward

 * Hub's Alien Blaster received from Dara Hubbell