The US Defense Advanced Research Projects Agency (DARPA) has issued a solicitation for spacecraft capable of operating in the moon’s unstable low orbit. This move aims to address the challenges associated with sustained lunar presence, including navigation and communication issues in these orbits. DARPA is seeking innovative solutions that can provide reliable and efficient space services.
Source: https://aviationweek.com/space/space-exploration/darpa-solicits-spacecraft-moons-unstable-low-orbit