NASA’s Northrop Grumman twentieth Cygnus Undocking from House Station NASA (.gov)Watch non-public Cygnus shipment spacecraft depart the ISS early July 12 House.comPrepping for Departure: Shipment Packed, Astronauts Interested in Science and Spacesuits SciTechDailyNASA Covers Northrop Grumman’s twentieth Shipment Departure Mirage Information
