Rocket Lab is protesting NASA's award of a Mars communications orbiter contract to Blue Origin. The contract is valued at up to $700 million. In 2021, Blue Origin fought NASA's selection of SpaceX for a crewed lunar lander. That dispute was about the lunar lander award.
Now Blue Origin has claimed the Mars orbiter contract. Rocket Lab is challenging the selection. Rocket Lab's challenge is the current dispute. This time, Blue Origin is the winning side and Rocket Lab stands as the challenger.