SpaceX launch: X-37B space plane mission hits 600 DAYS – what we know of secret mission X-37B – a military space plane blasted into orbit by a SpaceX Falcon 9 rocket – has now surpassed its 600th day on its top-secret space mission. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:BIG ONE FEARS: San Diego fault line at high risk of MAJOR earthquakeCan China Take the Lead on Climate Change? That Could Be DifficultFruit Flies and Mice to Get New Home on Space Station, at Least TemporarilyHow to Make a Mummy (Accidentally)The Mummies’ Medical Secrets? They’re Perfectly PreservedTrilobites: A New Formula to Help Tame China’s Yellow River