Live coverage: Two Russians, one American arrive at space station

A Russian Progress supply ship packed with 3.1 tons of cargo and propellant to refuel the International Space Station is set for liftoff Tuesday from the Baikonur Cosmodrome in Kazakhstan.

A SpaceX Dragon supply ship arrived at the International Space Station Saturday carrying a new docking mechanism, a spacesuit for future spacewalks, and a 3D bioprinter to test the feasibility of manufacturing human tissue in microgravity.

Mission control halted the expansion of Bigelow Aerospace’s experimental space station module Thursday after the structure did not grow as predicted when air began flowing into it.