An unmanned Soyuz capsule has docked with the International Space Station (ISS) as a replacement for a damaged space shuttle at the facility. After launching from Russia's Baikonur Cosmodrome in Kazakhstan on February 24, the Soyuz MS-23 arrived at the space station on February 26, NASA images showed. The unusual mission had become necessary because the MS-22 shuttle, which had previously docked with the ISS, sprung a leak -- probably caused by a micrometeor. The leaking liquid from the cooling system made the return of two Russians and a U.S. astronaut to Earth risky.