Video: Sending something up into space? Having it stay up while people live on it as it orbits the Earth? Becoming an outpost far, far away from home? Just incredible. Building a habitable space station satellite will always be an amazing feat of engineering and planning and sheer human ingenuity. Here are all the space stations that have ever orbited Earth, from the Salyut to Skylab to ISS and everything else in between and after.