Live coverage: Soyuz crew capsule departs station, lands in Kazakhstan

Boeing engineers are close to resolving concerns with the mass and aerodynamic shape of the company’s CST-100 Starliner commercial crew carrier, and officials are optimistic the spaceship will be ready to deliver astronauts to the International Space Station in early 2018.

Two spacewalking astronauts working outside the International Space Station Friday completed work to replace aging batteries in one of the lab’s eight main solar power circuits. A second spacewalk next week, along with additional work with the station’s robot arm, will upgrade a second power channel.

A Russian Soyuz spacecraft docked at the International Space Station early Friday, boosting the lab’s crew to nine for the next week and providing a ride home next March for two station crew members who are only halfway through a nearly yearlong stay aboard the lab complex.