China's Shenzhou 14 astronauts have opened up and entered the Tianzhou 5 cargo spacecraft after its docking at the country's newly completed space station. Tianzhou 5 launched on Saturday (Nov. 12) atop a Long March 7 rocket and arrived at the Tiangong space station just over two hours later, setting a new record for shortest rendezvous and docking time. Previous Tianzhou freighters took about 6.5 hours from launch until docking. Shenzhou 14 commander Chen Dong, Liu Yang and Cai Xuzhe opened the hatch door of Tianzhou 5 on Sunday (Nov. 13) at 0618 GMT (2:18 p.m. Beijing time), according to…