Spacewalking Astronauts to Complete Space Station Power Upgrade Today: Watch Live

Two Expedition 50 astronauts will head outside the International Space Station (ISS) today for the second spacewalk this month to wrap up a power upgrade. Shane Kimbrough of NASA and Thomas Pesquet of the European Space Agency emerged from the station's Quest airlock today (Jan. 13) at about 6:30 a.m. EST (1230 GMT) after switching their suits to battery power more than 30 minutes ahead of schedule. You can watch the spacewalk coverage live here on Space.com, courtesy of NASA TV.