Astronauts unfurl fourth roll-out solar array outside International Space Station

Another roll-out solar array was installed and deployed by astronauts Frank Rubio and Josh Cassada outside the International Space Station on on a spacewalk Thursday, a day later than previously planned after the space station needed to dodge a piece of space junk. Rubio and Cassada continued a multi-year upgrade to the space station’s electrical system, adding the fourth of six planned roll-out solar arrays to the station’s power truss. More

(Source: SpaceFlight Now - Dec 24)