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

Ruling out a strike by space debris or a micrometeoroid, Russian engineers say a small now-plugged leak in a Soyuz crew ferry ship docked to the International Space Station was the result of a hole drilled into the wall of the spacecraft’s upper compartment, an apparent case of human error.

The second of three robotic resupply ships going to the International Space Station in two weeks has arrived at its launch pad in Kazakhstan for liftoff Thursday aboard a Soyuz rocket.

The ocean-sailing ship that transports rocket stages from United Launch Alliance’s factory to U.S. launch sites completed its latest voyage overnight, pulling into port to deliver the Atlas 5 that will send a cargo freighter to the International Space Station in March.