A futuristic US pavilion at Expo 67. image via The Guardian.

For several years the space colony craze spread, from the most speculative edges of academia to the more intellectually active parts of the counterculture, to the American government itself. Murphy records that Gerard O’Neill, a Princeton University particle physicist and space colony advocate, “gave evidence to the US Senate on the prospect … and Nasa began to publicise the idea”.....Continue Reading

> via The Guardian