Video: Cygnus freighter arrives at orbital destination

Engineers are troubleshooting a small air leak aboard the International Space Station that was discovered last September, NASA reported Thursday. While it poses no safety threat, the lab’s three-man crew plans to seal themselves in the Russian segment of the station this weekend to help engineers pin down the leak’s location.

The launch of a Japanese cargo ship with more than 4.5 tons of supplies bound for the International Space Station has been rescheduled for Wednesday due to a poor weather forecast at the mission’s island launch base.

The launch of a Russian Progress cargo ship aboard a Soyuz rocket was aborted in the final minute of the countdown Sunday, forcing a delay of at least two days in the start of a resupply and refueling mission to the International Space Station.