Placing a space station in orbit around Saturn, Jupiter, or Uranus poses several challenges that have prevented such missions from being realized thus far. Here are a few reasons why there has never been a space station around these gas giants:
Extreme environments: Saturn, Jupiter, and Uranus are giant planets with harsh and extreme environments. They have high radiation levels, intense magnetic fields, and powerful atmospheric conditions, including strong winds and storms. These factors make it extremely challenging to design and maintain a space station that can withstand such conditions for extended periods.
Distance and travel time: Saturn, Jupiter, and Uranus are located much farther from Earth compared to the Moon or even Mars. Sending astronauts or robotic missions to these planets would require significant travel times, which would pose logistical challenges in terms of life support systems, crew supplies, and communication with Earth.
Cost and resources: Mounting a mission to establish a space station around these gas giants would be an enormous undertaking in terms of cost and resources. The development, launch, and maintenance of a space station in such distant and extreme environments would require substantial financial investments and technological advancements.
Focus on exploration: The majority of space exploration efforts and investments have been directed towards missions that provide scientific knowledge, technological advancements, or potential human settlement opportunities. The outer gas giants like Saturn, Jupiter, and Uranus have been explored through flyby missions, such as NASA's Voyager and Cassini missions, which have provided valuable data without the need for a dedicated space station.
That being said, there have been proposals and discussions about potential missions to explore these gas giants further, including sending robotic missions or probes to study their atmospheres, moons, and magnetic fields. However, the concept of a permanent space station in orbit around Saturn, Jupiter, or Uranus has not been a focus of current space exploration plans.