Snapshots from Atlas 5 launch

SpaceX test-fired a Falcon 9 rocket at Cape Canaveral Friday evening, igniting nine Merlin engines for several seconds while hold-down restraints kept the launcher on the ground. The company also confirmed the rocket is scheduled for takeoff Wednesday on a space station resupply mission, three days later than previously planned.

Air Force ground controllers have activated service aboard the newest Global Positioning System satellite, achieving that milestone for the final spacecraft in a dozen built in a manufacturing batch to update the constellation.

Russian cosmonaut Alexey Ovchinin and NASA astronaut Nick Hague landed safely downrange in Kazakhstan on Thursday after a Soyuz booster failure cut short their ascent into orbit from the Baikonur Cosmodrome toward the International Space Station. The emergency landing was the first Soyuz in-flight abort since 1975.