There are many things in the world which we are most untouched, which we can not even imagine, Today, humanity has touched such a dimension. Large bridges, large buildings, dams, airplanes do not go away ..!
Well, we talk about one of those “ISS.” That is, “international space station” world’s largest engineering project Launched on November 20, 1998, with a total expenditure of $ 160 billion. And a total of five space organizations from 15 countries raises the cost of running it smoothly. On average, it is an annual expenditure of $ 100 million.