Critical test launches of rockets and capsules NASA is counting on to deliver supplies to the international space station in the coming years are falling further behind schedule for both technical and logistical reasons.
Launches of Orbital Sciences Corp.’s Taurus 2 and Space Exploration Technologies Corp.’s Falcon 9 rockets, which until recently were scheduled for this year, are now expected to push into January and February, respectively, according to an internal NASA manifest. A second Taurus 2 flight, this one carrying Orbital’s Cygnus cargo module for the first time, is still officially scheduled for February, but the NASA manifest indicates a May launch date.
Both the Falcon 9 and Taurus 2, developed with funding assistance from NASA’s Commercial Orbital Transportation Services (COTS) program, are expected to begin making regular cargo runs to the space station starting in 2012. But the rockets and their associated cargo capsules first must successfully complete a series of COTS flight demonstrations intended to convince NASA and its space station partners that the new vehicles can safely do the job…