Space

NASA Ames Research Center

NASA's Groovy Concept Art for the Orbiting Cities of the Future

Not content with putting a man on the moon in 1969, the aeronautics agency once aimed to create an entire space-based neighborhood.

NASA / Reuters

The Search for Extraterrestrial City Life

Astrophysicists suggest looking for the shimmering light of cities on far off planets

Flickr user: marco_ask under a Creative Commons Licence

The Best and Worst of the World's Central Plazas and Squares

A pair of slideshows illuminating what makes a public gathering space work and what doesn't

NASA

Cities in Space

NASA's 1970s ideas for creating colonies between the Earth and the moon