Video: Delta 2/SMAP pre-launch news conference

Learn more about the United Launch Alliance Delta 4-Heavy rocket as it prepares to perform the classified NROL-37 mission for the National Reconnaissance Office,

NASA astronaut Kate Rubins and Soichi Noguchi, a Japanese astronaut who last walked in space more than 15 years ago, ventured outside the International Space Station Friday and completed assembly of two solar array support fixtures, part of a $100 million power system upgrade.

Despite NASA’s concerns about earlier thruster problems and multiple helium leaks in the ship’s propulsion pressurization system, the Starliner had no trouble undocking and moving away from the station at 6:04 p.m. EDT and executing a critical 59-second deorbit braking maneuver at 11:17 p.m. to drop out of orbit.