NASA is exploring the development of a lunar surface railway system known as FLOAT (Flexible Levitation on a Track). This system will employ unpowered magnetic robots that levitate over a three-layer flexible film track, enabling reliable, autonomous, and efficient payload transportation on the moon. FLOAT aims to play a crucial role in the daily operations of a future astronaut-inhabited lunar base, facilitating the movement of regolith for construction, payload transportation within the lunar base, and transportation to and from landing zones and exploration sites. The system features trackless robots designed to levitate over the track, minimizing lunar dust abrasion and reducing maintenance requirements compared to traditional wheeled or tracked vehicles. The tracks for FLOAT will be unfurled directly onto the lunar surface, eliminating the need for complex construction work. NASA plans to test sub-scale prototypes in a lunar-analog environment, develop manufacturing systems for hardware production, and eventually deploy the system as part of its Artemis program, which aims to establish a sustainable human presence on the moon.