On December 3, NASA awarded three companies contracts to develop private space stations to prepare for the decommissioning of the international space station < p > NASA announced that blue origin, a space tourism company under Amazon founder Jeff Bezos, Northrop Grumman, a US defense contractor, and nanoracks, a space service company, won the agency's "commercial low earth orbit destination" (CLD) project contract, with a total contract value of US $415.6 million (about 2.65 billion yuan) < p > among them, nanoracks received the highest contract value of USD 160 million. Blue origin and Northrop Grumman won contracts of US $130 million and US $125.6 million respectively. It is worth noting that Voyager space, a private holding company, is the major shareholder of x.o.markets, the parent company of nanoracks < p > earlier this year, NASA announced that it had received "about 12 proposals" from many companies in the hope of obtaining CLD project contracts. As NASA plans to retire the international space station by 2030, the CLD project represents an effort to support private companies in building a new space station, which the agency expects to save more than $1 billion a year < p > NASA has increasingly used public-private cooperation as a way to achieve its space goals, rather than building and owning its own hardware. Over the past decade, the agency has achieved great success through this model, such as the development of spacecraft through SpaceX and Northrop Grumman to provide cargo and manned services < p > NASA does not expect to pay the full cost of helping private companies build a new space station. The agency said that from an investment perspective, "this strategy must apply to both the government and the private sector" < p > Blue origin previously announced its plan to cooperate with Sierra space, Boeing, Redwire space and Genesis engineering to build the "orbital reef" space station. These companies hope to put the basic version of orbital reef into use by 2027 and gradually improve it in the next decade < p > nanoracks also announced the cooperation with Voyager and Lockheed Martin to jointly build a space station called "starlab", with the goal of operating in orbit by 2027 < p > Northrop Grumman is building its own private space station. The company said that the space station will initially support four astronauts and then expand to eight astronauts < p > it is worth noting that axiom space did not bid for CLD projects. The company has won a $140 million contract from NASA to connect the living module to the international space station. Axiom space said in a statement that the company "congratulates the winners and looks forward to the common vision of building a thriving business network in low earth orbit". (small) < / P > < p >