Timeline: The Evolution of the International Space Station

The ISS looked this way—with the fourth and final solar panel truss—as the space shuttle Discovery undocked yesterday. It’s almost as big as a Corellian corvette, but there’s still a long to do list:

As you can see, there’s still a lot to be done, as you can see in the following list of modules that have to go up there.

• Multi-Purpose Logistics Module — Delivered by the space shuttle.
• Kibo Japanese Experiment Module Exposed Facility (JEM-EF); Kibo Japanese Experiment Logistics Module – Exposed Section (ELM-ES); and Spacelab Pallet – Deployable 2 (SLP-D2) — Delivered by the space shuttle.
• Multipurpose Laboratory Module (MLM) with European Robotic Arm (ERA) – docked to Zarya nadir port — Delivered by Russian Proton rocket.
• Multi-Purpose Logistics Module (MPLM); Lightweight Multi-Purpose Experiment Support Structure Carrier (LMC); three crew quarters; galley; second Treadmill Vibration Isolation System (TVIS); Crew Health Care System 2 (CHeCS 2). — Delivered by shuttle
• HTV1, Japanese H-II Transfer Vehicle. — Delivered by the space shuttle.
• EXPRESS Logistics Carrier 1 (ELC1) and EXPRESS Logistics Carrier 2 (ELC2). — Delivered by the space shuttle.
• Multi-Purpose Logistics Module (MPLM) and Lightweight Multi-Purpose Experiment Support Structure Carrier (LMC). — Delivered by the space shuttle.
• EXPRESS Logistics Carrier-3 (ELC-3) and EXPRESS Logistics Carrier-4 (ELC-4). Micrometeoroid Debris panels are installed on Zvezda Service Module and the Zvezda solar arrays are feathered. — Delivered by the space shuttle.
• Node 3 with Cupola (also called the The Colbert). Pressurised Mating Adapter-3 (PMA-3) is relocated from Unity node nadir to Node 2 nadir beforehand. The Cupola is relocated to the forward port of Node 3 after the flight; and PMA- 3 is relocated to the axial port of Node 3 after the flight. — Delivered by the space shuttle.
• EXPRESS Logistics Carrier-5 (ELC-5). Pirs Docking Compartment moves to zenith (top) port of Zvezda Service Module. — Delivered by the space shuttle.
• Research Module which docks to Zvezda Service Module nadir port. — Delivered by Russian Proton rocket.

[NASA]