In Aliens, what is the name of the colony on LV-426?

In Aliens, the colony on LV-426 is called Hadley’s Hope.

Hadley’s Hope is a terraforming colony established on the moon LV-426, the same world where the derelict spacecraft was discovered in Alien. Contact with the colony is lost after its settlers investigate the derelict ship and become exposed to the alien organisms.

The name appears in the film’s background material and dialogue, while the main action follows a Colonial Marine unit sent to investigate. Ellen Ripley joins the mission after warning the company and military about the danger she encountered years earlier.

LV-426 is also called Acheron in Aliens. Viewers sometimes remember the moon only by that name, but Hadley’s Hope refers specifically to the human settlement, not the celestial body.