The main engine rumbling to life. Ice shards breaking free. The rocket lumbering off the pad. The battle against gravity being won once again. That was the scene as the Atlas 5 took flight to cap a generation of Global Positioning System satellites.

A Russian Soyuz crew ferry craft departed the International Space Station and descended to an on-target landing in Kazakhstan on Saturday with a record-setting NASA astronaut, a veteran Russian cosmonaut and a former U.S. Air Force test pilot on-board. Undocking from the orbiting research complex occurred at 2158 GMT (5:58 p.m. EDT), with touchdown at 0121 GMT (9:21 p.m. EDT).

The MS-25 mission was scrubbed on Thursday, but the root cause is still under investigation. The earliest that liftoff from the Baikonur Cosmodrome can now occur is Saturday, March 23, pending the outcome of the investigation.