NASAs $6.8 billion deal with SpaceX and Boeing buys the US space agency a lot more than a few taxi rides to the International Space Station. From new independence from the Russian space program to the drive of competitive innovation, the private contracts promise to open new doors for US space exploration.

NASA administrator Charlie Bolden announced Tuesday that the space agency will contract with two private agencies to transport US astronaut crews to the International Space Station. The contract with the Houston-based Boeing Company is valued at $4.2 billion. California-based Space Exploration Technologies Corp., more commonly known as SpaceX, has been awarded a $2.6 billion contract. Under the contracts, each company will pilot between 2 and 6 ferrying missions.

NASA deactivated its own space shuttle in 2011 and has since relied on Russian vessels to transport US astronauts to the space station. Given mounting tensions between the two nations, Congress has been keen to minimize such reliance on the Russians.

The removal of NASA astronauts from the drivers' seats drew some criticism from some astrophysicists who expressed concerns that the move was the first step in a more systematic defunding of the US space program.

However, noted astrophysicist Jonathan McDowell of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass. sees the shift as a worthy reallocation of limited resources.

It makes sense to me that NASAs role should be at the frontier. Trucking astronauts and their food and supplies and so on is no longer the frontier, Dr. McDowell tells the Monitor. NASA astronauts shouldnt be truck drivers. Thats not what theyre for. Theyre for being the first people on Mars, or on an asteroid.

Outsourcing NASAs short-range transportation needs to private industry could also lead to innovations that ultimately reduce shuttle costs, McDowell says. Already, SpaceX has hinted that it will charge just a fraction of the $71 million per seat ticket price offered by the Russians.

NASA operates firmly under the thumbs of Congress and other federal regulatory bodies and can be bogged down by the same managerial redundancies and cumulative regulations that plague other government agencies.

Within the government, the drive to prevent anyone from doing anything wrong also stops people from having the flexibility to do what they need to do to get things right, McDowell says.

SpaceX and Boeing will certainly be subject to government regulations regarding safety and control of space debris. However as private companies, they enjoy more latitude in how they explore and implement technologies than NASA has, he explains.

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What will NASAs $6.8 billion space taxi contracts really buy?