In NASA signed a third contract for the delivery of astronauts on the ISS

On the eve of the third NASA signed a contract for the delivery of astronauts on board the ISS. This will the company Boeing, for which the planned flight will be the second mission, approved by the American space agency.
As reported in NASA, the second contract with Boeing provides for the delivery of astronauts to the International Space Station manned spacecraft Boeing CST-100 Starliner. The agreement on another flight was achieved agencies and companies before, in May this year. In addition, another contract for the launch of spacecraft to the ISS NASA has concluded with the company Elon Musk SpaceX. "After passing the certification of ships NASA launches Boeing CST-100 Starliner and SpaceX Crew Dragon crews on board will take place twice a year", - explained the managing program NASA's development of private manned spacecraft (Commercial Crew Program) Katie Leders.
In general, within the framework of Commercial Crew Transportation Capability US space agency plans to sign four contracts (three in view of the latter have already been signed). Terms launch vehicles not yet been approved, but the first one is scheduled for late 2017. The International Space Station, according to specialists, will remain in orbit until at least 2028.