Articles by William Harwood

Astronauts Jasmin Moghbeli and Loral O’Hara worked outside the International Space Station Wednesday to replace a bearing assembly in one of the lab’s solar array rotation mechanisms. But the task took longer than expected and they were unable to retrieve a failed electronics box as planned.

Two Russian spacewalkers floated outside the International Space Station Wednesday and isolated a leaking radiator as planned, apparently causing residual coolant still trapped inside to make its way to the leak site and spew out into space.

NASA astronaut Frank Rubio and two Russian cosmonauts undocked from the International Space Station and plunged back to Earth early Wednesday, landing on the steppe of Kazakhstan to close out an unexpected yearlong stay in space, the longest single flight in U.S. space history.

Outgoing space station commander Sergei Prokopyev and his two Soyuz crewmates, co-pilot Dmitri Petelin and NASA astronaut Frank Rubio, packed up Tuesday for a fiery plunge back to Earth early Wednesday to close out a yearlong stay in orbit, the longest flight in U.S. space history.