Nasa man expects first prototype of a spaceship that will take us between worlds ‘within a few years’The US space agency Nasa has announced an intriguing new project called the 'Hundred Year Starship' which aims to send humans on a one-way trip to newly discovered planets across the galaxy. "The human space programme is now really aimed at settling other worlds," said Pete Worden, director of Nasa'a Ames research laboratory, at a seminar in San Francisco. "Twenty years ago you had to whisper that in dark bars [or] get fired." The Ames laboratory is responsible for Pioneer 10, the...