Rank #84
The invention of the International Space Station
This invention is a revolutionary development in space exploration and human spaceflight. The International Space Station (ISS) is a habitable, artificial satellite in low Earth orbit. It is the largest artificial body in space and can be seen with the naked eye from Earth. The ISS serves as a research laboratory
From Wikipedia
A space station is a spacecraft which remains in orbit and hosts humans for extended periods of time. It is therefore an artificial satellite featuring habitation facilities. The purpose of maintaining a space station varies depending on the program. Most often space stations have been research stations, but they have also served military or commercial uses, such as hosting space tourists.