The 15 years of the construction of the International Space Station (ISS) have been completed recently. Probably the creation of ISS in human history was the most risky and exceptional. This is also the biggest example of international cooperation.
Source:astroquizzical.com
The building, built at a cost of $ 100 million over 260 miles (420 kilometers) from the surface, is also bearing a unique testimony to the technology excellence of the people. Currently there are regular spacecraft from the world at this space station. Carrying out various materials, equipment and lifespan of various materials.
But the construction of ISS was not as easy as building a dry dock vessel. Its construction plan was ambitious. It was different in size and technical excellence than the US Skylab and Russia's Mirror.
Source: esa.int
When the construction is completed, the size of the ISS is equal to one football field and weighs 330 in the surface of the ground.
It is planned to build it so that space scientists can live here for a long time. After creating successfully, the astronomical station is now very normal to live in the month of the scientists. Since 2000, there have been positions in the ISS and about two hundred scientists. They have tested and conducted thousands of subjects including technology, medicine.
Source:Wikipedia
The space station is now running at a speed of 17,500 miles per hour with more than four hundred kilometers. That means, the way the station is traveling every day, it is the same path to return to the moon from Earth and return. Its brightness in the night sky is equivalent to Venus. From the surface it is seen from the naked eye. However, the observer must know its position.