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.
Additional illustrations of space settlements: