The Liaoning and Shandong are China's only operational aircraft carriers. Another, the Fujian, is undergoing sea trials.STR/AFP via Getty Images/Getty ImagesA satellite image shows China's two operational aircraft carriers docked together.Liaoning and Shandong were pier-side at Sanya Naval Base on Hainan Island in the South China Sea.Both carriers arrived at the base after completing exercises in the region.A rare satellite image captured China's two fully operational aircraft carriers sitting pier-side together in the South China Sea earlier this week.The carriers arrived at the naval base after several weeks of exercises in the region.Business Insider obtained the satellite image from BlackSky, a real-time, space-based intelligence company.