At 8:31:28 AM on March 20, the Tiandu-1 and Tiandu-2 communication and navigation technology test satellites were successfully launched into space from the Wenchang Space Launch Site in China by a Long March-8 Y3 carrier rocket. As the first satellite launched from the deep space exploration laboratory, Tiandu carries the Chang'e-7 lunar exploration mission's relay satellite (Queqiao-2), providing preliminary technical verification for establishing the Earth-Moon "Queqiao Network"...