A space station is a large spacecraft that remains in low Earth orbit, allowing astronauts to live and work in space for extended periods. These stations are equipped with various facilities, including laboratories for scientific research, sleeping quarters, and areas for exercise. The most famous space station is the International Space Station (ISS), which is a collaborative project involving multiple countries. Astronauts aboard a space station conduct experiments that can only be done in microgravity, such as studying the effects of space on the human body or growing plants in space. This research helps scientists understand more about our universe and prepares us for future missions to places like Mars.