The COTS Demonstration Cygnus spacecraft completed a milestone when its Pressurized Cargo Module (PCM) was attached to the Service Module (SM), and all mechanical flight connections were attached. ... more 
The COTS Demonstration Cygnus spacecraft completed a milestone when its Pressurized Cargo Module (PCM) was attached to the Service Module (SM), and all mechanical flight connections were attached. This image was taken April 2, 2013. less 
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SPACE.com | Photo By Orbital Sciences Corporation / NASA
Mon, Apr 15, 2013 6:12 AM EDT