"The Earth is a beautiful planet. The space station is a great vantage point to observe it and share our planet in pictures. It makes you more of an environmentalist."
– Scott Kelly
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13.1. Architecture
13.2. Airframe
13.2.1. Space Station Modules
13.2.1.1. Core
13.2.1.2. Upper Level
13.2.1.3. Lower Level
13.2.1.3.1. Resupply Module
13.2.1.4. Bottom Level
13.3. Powerplant (Top Level)
13.4. Space Station Alpha
13.4.1. Outpost
13.4.2. Expeditionary
13.4.3. Space Station Crew
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