Photos: Tuesday’s Atlas 5 rollout

A Japanese resupply freighter and its H-2B rocket booster rolled out of the vehicle assembly building at the Tanegashima Space Center just before sunrise Friday for the half-hour trip to the launch pad.

The four RS-25 engines at the bottom of NASA’s first Space Launch System core stage shut down about a minute into a ground test-firing Saturday that was supposed to last more than eight minutes.

A wave of clock failures on Europe’s Galileo navigation satellites has not knocked any of the craft offline, but officials want to better understand the problem before launching more satellites into the fleet.