No free launches

时间:2019-03-07 03:10:00166网络整理admin

The cost of keeping the International Space Station in orbit will be roughly three times NASA’s estimates, according to the investigative arm of the US Congress. The General Accounting Office (GAO) says that NASA’s price tag of $1.3 billion per year doesn’t include such costs as shuttle flights and communicating with ground control. The GAO claims these will run to at least $2.5 billion a year. NASA has resisted including shuttle launches in the station’s costs, and disputes the GAO’s estimate of $435 million per shuttle flight. It says the cost of maintaining a shuttle fleet must be left out of the equation,