Video: Soyuz MS-01 leaves the space station for landing

The Centaur upper stage destined to send Boeing’s CST-100 Starliner crew capsule into orbit on its first unpiloted test flight next year has arrived at Cape Canaveral after a sea journey aboard United Launch Alliance’s Mariner transport ship.

As expected, NASA announced Wednesday that the first unpiloted test flight of a SpaceX Falcon 9 rocket and a Crew Dragon astronaut ferry ship has slipped from later this month to March 2. The first unpiloted flight of Boeing’s Starliner capsule is now targeted for the April timeframe.

NASA flight engineer Anne McClain grappled Northrop Grumman’s Cygnus supply ship with the International Space Station’s robotic arm Friday, marking the automated cargo freighter’s arrival after an abbreviated day-and-a-half-long journey from a launch pad in Virginia with nearly 7,600 pounds of experiments, food and provisions.