The tiny satellite (it weighs just 55lbs) will first conduct a navigation demo with the Lunar Reconnaissance Orbiter, but it's ultimately meant to be a "pathfinder" that will help the Artemis program's Gateway spacecraft safely approach the Moon.

This deal isn't surprising given the current NASA administration's privatization efforts. At the same time, it appears to be a logical fit. Rocket Lab's speciality is launching rockets quickly and on a relatively low budget, and it appear to be delivering -- it'll blast off roughly a year from this writing with a cost just under $10 million, or less than the $13.7 million NASA is paying to create and run CAPSTONE. If everything goes well, this could lead to more high-profile team-ups between NASA and Rocket Lab.