Mission Reports

Cygnus departs space station, deploys CubeSats

A Northrop Grumman Cygnus cargo craft departed the International Space Station Friday to close out a three-month stay, then raised its orbit to release multiple experimental nanosatellites for NASA, the U.S. military and research institutions, including one that was snap-assembled by astronauts using 3D-printed parts produced on the station.

Mission Reports

Astronauts finish repairs to space station cosmic ray detector

During a fourth spacewalk Saturday to wrap up repairs of the coolant system in a $2 billion cosmic ray detector, Italian astronaut Luca Parmitano and Drew Morgan discovered a leak in one of eight coolant lines that were spliced into a new pump module during three earlier excursions. But Parmitano was able to tighten a fitting on the line and the astronauts were able to complete the repair work, setting the stage for the instrument to resume science operations.