NASA and its international partners have named the crews that will live and work aboard the International Space Station for the next two years. The crew members make up three expeditions to the station and represent four space agencies.

The assignments include the first long-duration station flight for a Japan Aerospace Exploration Agency (JAXA) astronaut and the second long-duration station flight for an astronaut from the European Space Agency (ESA). The JAXA and ESA astronauts will work on the installation and checkout of the Japanese Experiment Module Kibo and European Columbus laboratories on the station.

Mission control teams are working to assess systems affected by a power loss aboard the International Space Station early Sunday morning. The station's three crew members were not in any danger, but it did turn an off-duty day into a full work shift.

About 1 a.m. EST, one of the power channels of the P4 solar array electrical system went down because of a glitch with a device known as a direct current switching unit. It controls power distribution from the solar array to the battery systems and other hardware. The glitch resulted in a temporary loss of communications, and shut down some equipment, including a few science facilities and heating units and control moment gyroscope #2. The station never lost orientation control, but it operated most of the day with two of four gyros. Control moment gyroscope #3 previously had been powered down.