In a historic move, NASA is constructing the Gateway space station, a lunar orbit transportation hub, as part of its Artemis program. Located 240,000 miles from Earth, this space station will serve as a staging point for astronauts, hosting Orion crew capsules, lunar landers, and cargo spacecraft. However, managing traffic in the complex gravitational environment is proving challenging. Researchers from Texas A&M University, NASA's Johnson Space Center, and Purdue University are developing mathematical 'rules of the road' to ensure safe waiting and predictable positions for spacecraft. These rules will be crucial for avoiding collisions around Gateway. Scheduled to launch no earlier than 2027, the station will operate autonomously between crewed missions and accommodate up to four astronauts at a time for approximately 30-90 days. The Gateway's unique near-rectilinear halo orbit, which takes it as close as 1,000 miles from the lunar surface before carrying it tens of thousands of miles away, poses additional navigation and traffic management challenges. To address these issues, researchers are exploring 'loitering' techniques, where spacecraft maintain controlled positions relative to specific orbits while waiting for their next operation, creating a 'string of pearls' along the orbital path.