Cool your jets: NASA's quantum spaceship is doubtful - space - 06 August 2014 - New Scientist

Cool your jets: NASA's quantum spaceship is doubtful - space - 06 August 2014 - New Scientist: ...as Baez points out, this new device in question wasn't even tested in a vacuum! That's extremely important; assuming the measurements are real, the thrust seen could be due to air being warmed up and moving around.