The Sphere Builders are aliens from another dimension in the fictional Star Trek universe. They are bent on conquering the galaxy by reconfiguring the fabric of space to make it more hospitable to them using specially designed moon-sized spheres. They were first seen in the 2004 Star Trek: Enterprise episode "Harbinger". Their technology is responsible for the creation of a region of space known as the Delphic Expanse, where the physical laws of our universe often break down. The Expanse is extremely hostile to residents of our dimension, and those that enter have great difficulty in leaving....

Pre-Federation era
Two Enterprises predate the United Federation of Planets.


XCV 330Registry: USS Enterprise (XCV 330)
Class: Declaration
Service: circa 2130s
Captain: Unknown

This USS Enterprise (XCV 330) appears in Star Trek: The Motion Picture among a series of illustrations depicting ships named Enterprise. The 1979 Star Trek Spaceflight Chronology describes this "first interstellar liner" as a Declaration-class ship launched in 2123.[2]



NX-01Registry: Enterprise (NX-01)
Class: NX
Service: 2151 – 2161
Captain: Jonathan Archer (Scott Bakula)
The United Earth Starfleet's Enterprise is the main setting...

The Xindi (pronounced /ˈzɪndi/) is the collective term for six fictional races in the science fiction television series Star Trek: Enterprise. They are native to the planet Xindus in a region of space known as the Delphic Expanse. They consist of five separate species resembling familiar Earth animals (a rarity for alien races in Star Trek) and a sixth resembling humans.

The entire third season of the series centered on this group of previously unknown aliens. At first they appeared as violent enemies wanting no interaction with humanity, but common ground gradually emerged as the crew of...