Trekipedia

Earth Spacedock

The Earth Spacedock was a massive station orbiting the planet Earth, providing service facilities for Starfleet vessels. The U.S.S. Enterprise NCC-1701 returned to the Spacedock in 2285 following the battle with Khan in the Mutara Nebula. At the time, the ship was scheduled to be decommissioned, but Admiral Kirk stole the Enterprise from the Spacedock in his effort to rescue Spock on the Genesis Planet. Also at the Spacedock at the time was the U.S.S. Excelsior NX-2000, undergoing tests on its experimental transwarp drive.^[1] The Spacedock was disabled by an alien space probe approaching Earth in 2286.^[2] In 2287, the U.S.S. Enterprise NCC-1701-A was undergoing shakedown tests and systems installation at the Spacedock prior to the Nimbus III incident.^[3] In 2291, the Enterprise-A left the Spacedock to escort Klingon Chancellor Gorkon to Earth for a peace conference.^[4] By the late 24th century, the spacedock had been replaced by a new station, which was a larger version of the same design.^[5]

V122 Timeline

In 2372, the runabout U.S.S. Yellowstone NCC-74751 was stolen from the Spacedock by Ensign Harry Kim and Tom Paris (Alt-V122).^[5]

STO Timeline

In the early 25th century, the Earth Spacedock was replaced with a new space station complex. Though it lacked the internal dock capabilities of its predecessors, it was surrounded by orbital drydock lattices that could expand and contract to service virtually any starship type. However, in 2409, the young Q replaced this new station with its predecessor, a change that remained permanent.^[6]