Unmanned X-37B,which looks like a miniature space shuttle, was in orbit for more than 700 days before landing caused sonic boom heard across stateThe US military’s experimental X-37B space plane landed on Sunday at Nasa’s Kennedy Space middle in Florida, or completing a classified mission that lasted nearly two years,the US air force said. Related: Mysterious space plane blasts off for secretive US air force mission Continue reading...
Source: theguardian.com