Video: Space station Expedition 42 fit check

Concern about a possible ammonia coolant leak Wednesday prompted astronauts on the International Space Station to evacuate the U.S. segment of the complex and shelter in the Russian portion of the outpost while flight controllers scrambled to untangle initially confusing telemetry.

Russia launched a Progress resupply mission Tuesday heading for the International Space Station with more than 6,000 pounds of fuel, supplies and experiments to support the lab’s six-person crew, and the automated cargo craft sailed to a smooth link-up with the complex less than six hours later.

Europe’s fifth and final Automated Transfer Vehicle departed the International Space Station for the last time Saturday, closing out one of the European Space Agency’s flagship programs as the bus-sized spaceship heads for a destructive re-entry Sunday.