Live coverage: Cygnus cargo freighter departs space station

Officials will likely set a new launch date Thursday for a SpaceX-owned commercial cargo craft that was expected to take off Friday heading for the International Space Station, according to sources familiar with launch preparations.

Two Russian cosmonauts used the International Space Station’s Poisk docking compartment as an airlock for the first time Wednesday in a six-hour 48-minute spacewalk to begin preparing the nearly identical Pirs module for removal next year. A new laboratory module will be parked in its place later.

An ambitious mission of exploration launched from Japan at 0422 GMT Wednesday (11:22 p.m. EST Tuesday). An H-2A rocket lifted off from the Tanegashima Space Center with Hayabusa 2, starting a six-year journey to collect rocks from an asteroid and return them to Earth.