A Russian Progress cargo ship undocked from the International Space Station early Monday, taking with it the two-decades-old Pirs airlock and docking compartment to clear the way for Thursday's ...

A heavy-lift Proton rocket roared to life and blasted off from the Baikonur Cosmodrome in Kazakhstan Wednesday, sending a long-delayed 44,000-pound laboratory module into orbit for an eight-day flight ...

China's manned space program has witnessed another milestone, as the Shenzhou-14 taikonauts entered the Mengtian lab module - the third and last part of the three-module China Space Station - on ...