Beijing, Dec 17 (Reporter) China successfully launched four PIESAT-2 Earth remote sensing satellites into orbit on Tuesday, the China Aerospace Science and Technology Corporation (CASC) said in a statement. The launch took place on Tuesday at 2:50 A.M. local time (18:50 GMT on Monday) from the Taiyuan Cosmodrome, located in Shanxi Province in northern China, using the Changzheng-2D ("Long March") launch vehicle. This was the 553rd mission for the Changzheng launch vehicles...////...