On Jan. 4, NASA held a press briefing at the agencys Johnson Space Center in Houston to preview a pair of planned spacewalks to perform a complex upgrade to the International Space Stations power system. NASAs Shane Kimbrough and Peggy Whitson will conduct the spacewalk on Jan. 6. The second spacewalk, on Jan. 13, will be performed by Kimbrough and Thomas Pesquet of ESA (European Space Agency). Working on the right side truss of the space station, the crew members will install adapter plates and hook up electrical connections for six new lithium-ion batteries that were delivered to the station in December.