Video: Change of command aboard International Space Station

The Antares rocket, Orbital ATK’s medium-class booster now with modern RD-181 engines, launches at 7:45 p.m. EDT (2345 GMT) from NASA’s Wallops Flight Facility on the eastern shore of Virginia.

Astronauts Mike Hopkins and Victor Glover floated back outside the International Space Station Monday and completed solar array battery replacement work that began four years ago. They also installed three new video cameras and made preparations for upcoming work to install new roll-out solar blankets to upgrade the lab’s power system.

Two days after departing from a launch pad on Florida’s Space Coast, a SpaceX Dragon cargo capsule arrived at the International Space Station on Wednesday with more than 6,400 pounds of experiments and supplies after concluding an automated laser-guided approach.