Kalpana One has a radius of 250m and a depth of 325m, spins at a rate of 2 revolutions per minute to give the feeling of one Earth gravity on outer level, and has a population of 3,000 people.
Above: Kalpana One exterior. Below: Kalpana One interior. Videos by Bryan Versteeg, Spacehabs.com.
All images on this page © Bryan Versteeg, Spacehabs.com.

External view. Larger image (1000 x 563 pixels)

Closer view of exterior. Larger image (1000 x 563 pixels)

Cutaway view of interior. Larger image (1000 x 563 pixels)

Cutaway view of interior. Larger image (1000 x 563 pixels)

Interior sports field. Larger image (1000 x 563 pixels)

Interior support pillars. Larger image (1000 x 563 pixels)

Kalpana One interior. Larger image (1000 x 563 pixels)

Interior detail. Larger image (1000 x 563 pixels)

Automated robotic farm. Larger image (1000 x 563 pixels)
Additional illustrations of space settlements: