I was asked what STX stood for. Here is a breif report:
STX stands for Secret Transwarp eXperiment. After the Destruction of the Enterprise-D along with the Veridian System, things did not go well for the federation. From the nearly catastrophic Borg attack on earth, which was averted only by sacrificing several starfleet ships and thier by performing simultaneous Picard Manuevers ramming the cube, to the Dominion War, the breakdown of the treaties between the Klingons and the Federation, things continued to get progressively worse. Shortly after the end of the dominion war, A scientist known as Peter Harkin brought a new drive idea to the federation science council. he called it a space fold drive. they dismissed him and his idea as unfeasable, to much power required.
'Taking a page from zephram cochrane, he built his own ship to prove his theory. During the flight, in his eagerness to prove his theory and show up those who had mocked him, Dr. Harkin failed to input a destination for the drive and vanished.No wreckage was ever found. 16 years later the U.S.S. VOYAGER returned to the alpha quadrant after being missing for 23 years. Capt. Janeway brought back a ragtag crew and three new technologies. The Transphasic Torpedoes and Ablative Armour technologies were immediately put into service, shifting the balance of power back to the federation. The slipstream drive took another 10 years before it could be used in a limited capacity. Starfleeet began work to make Slipstream Drives more efficient and more useful. This began the STX project.
It was during this time, 2413 to 2473, that the galaxy enjoyed a long period of peace
In 2473, seven years after the launch of the U.S.S. ENTERPRISE NCC-1701-G, an alien race from outside the Galactic Barrier invaded the galaxy. Using Fold Drives, neutronium armor and advanced particle weapons, they struck every major political power in the galaxy at once. Their fold drive capability gave them the ability to be anywhere in the galaxy in 8 seconds. These beings, calling themselves the Yaz'tu Jakhar, claimed to be millions of years old and the rightful rulers of the galaxy. Even the Borg which had re-established the collective fell to them. In the century that passed, all transwarp technology was usurped or destroyed. The Federation and other Alpha Quadrant powers fell in only a few hours. All resistance was summarily destroyed. The "Jakharthans" (a slur that became popular among the oppressed) ruled with an iron fist from the home of the Race that gave them the most trouble: Earth.
Shortly after the invasion began, Crews working on the STX-01 began securing and evacuating the secret drydock facility housed at the Starfleet Museum annex in Martian orbit. As the evacuation proceeded, they recieved word the Enterprise-G had been destroyed. Just before the final shutdown, the registry on the ship was changed to honor the Enterprise. For nearly a century the STX-1701-H sat silently in her heavily shielded and secure drydock. That is, until Captain Angela Bremerton and her crew reactivated her systems and began the opening volleys of the war that freed the galaxy. She was instrumental in the reformation and restoration of the Federation. The new Restored United Federation of Planets now encompassed all that was once Cardassian, Klingon, Romulan, Dominion and some of the Borg controlled Space.
Where ever you go you are ALWAYS where you choose to be.