Live coverage: Soyuz test flight concludes with landing in Kazakhstan

Astronauts Terry Virts and space station commander Barry “Butch” Wilmore ventured back outside Sunday for their third spacewalk in eight days to complete initial preparations for upcoming dockings by commercially developed Boeing and SpaceX crew ferry ships.

Russia’s Proton rocket took off on its first launch of the year Sunday with a commercial satellite to expand Inmarsat’s next-generation mobile communications network. Liftoff occurred at 1231 GMT (7:31 a.m. EST), and it took more than 15 hours to place the Inmarsat spacecraft in the correct orbit.

NASA commentator Dan Huot has everything you need to know about Russia’s Soyuz space capsule and provides a tour inside the cramped spacecraft, which, since the end of the shuttle program, has been the only way to ferry cosmonauts and astronauts to and from the International Space Station.