This space papercraft is the Thunderbird 5 Space Station, designed by Gary Pilsworth. The largest rescue vehicle of the Thunderbirds inventory, Thunderbird 5 is an Earth-orbiting space station which monitors all broadcasts around the globe for calls for help and also manages communications within International Rescue.
Measuring 122 m long, 90 m wide, and 83 m tall, Thunderbird 5 was equipped with almost completely automated onboard systems, allowing the entire station to be run by a single crew member. Thunderbird 5 is primarily commanded by John Tracy, although he is periodically relieved by Alan. Derek Meddings designed Thunderbird 5 after the other machines and apparently based the design on the Tracy Island Roundhouse model.
You can download this space paper model template here: Space Papercraft - Thunderbird 5 Space Station Free Paper Model Download