Friday, December 4, 2009

Pondering Safety

Congress has begun a process aimed at developing a safety regime that would allow NASA astronauts to fly to orbit aboard commercial spacecraft. Currently, between the retirement of the space shuttle, likely in 2011, and the first flight of Orion, which might be delayed until 2017 because of budget problems, astronauts will have to hitch rides in Russian Soyuz capsules. For various reasons, many people are unhappy about such a Russian monopoly of access to a largely U. S.-built space station.

Of course, at the moment there are no commercial human-rated spacecraft, much less any capable of orbital flight, but there are companies working towards that goal. SpaceX and Orbital Sciences already have contracts with NASA to build cargo ships that will take supplies to ISS, and both are looking at transforming those unmanned vehicles into human-rated capsules. Several other NewSpace companies-- plus, perhaps, Lockheed Martin and Boeing-- are also trying to develop manned spacecraft. One, Interorbital Systems, plans a private orbital flight in 2011.

Before NASA will risk astronauts' lives in such vehicles, however, the craft will have to meet NASA safety requirements. The U. S. House committee with oversight of space policy has held hearings gathering testimony and facts about the safety issue. The committee is urging NASA and the FAA to cooperate in developing safety standards for commercial craft. NASA says it would probably take three years for it to be satisfied that a commercial spaceship was safe enough to fly astronauts. Three years doesn't seem an inordinate amount of time if a new company can get NASA's seal of approval.

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