For a decade, NASA promoted the idea of building a space station around the Moon known as the Lunar Gateway. It touted the facility as both a platform for exploring the lunar environment and testing the technology needed for deep-space habitation.
Like many major space projects, it faced delays. Originally, the first component of the space station was due to launch in 2022. Later, it was decided that this module, to provide power and propulsion, would launch in tandem with a habitable volume known as the Habitation and Logistics Outpost (HALO) in 2024. This core was slated to be joined by another pressurized habitation module contributed by international partners I-HAB in 2026.
These dates, of course, have come and gone. And in March, NASA Administrator Jared Isaacman announced that the Gateway was being "paused" so the space agency could focus on the lunar surface.