Rocket Lab has filed a formal protest with the US Government Accountability Office (GAO) challenging NASA’s selection of Blue Origin for the Mars Telecommunications Network — a $700 million contract to build, launch, and operate a spacecraft that will relay transmissions between Mars and Earth.

The dispute centers on eligibility criteria that Congress wrote into the One Big Beautiful Bill funding legislation, which specified that the winning bidder must have previously received NASA funding for Mars Sample Return commercial design studies AND have proposed a separate, independently launched Mars telecommunications orbiter supporting an end-to-end sample return mission. Rocket Lab claims the award decision was inconsistent with the eligibility criteria mandated by Congress and that NASA’s review of its technical proposal was punitive and made incorrect assertions and conclusions.

The backstory is revealing: the congressional language was reportedly intended to favor Rocket Lab, which had presented itself to shareholders as the only company with a qualifying end-to-end mission proposal. But NASA ultimately chose Blue Origin’s Blue Ring platform, a spacecraft the agency may have viewed as more mature or capable of meeting the late-2028 launch deadline.

Notably, NASA has still not publicly released a source selection statement explaining its technical rationale — nearly two weeks after the award. This procurement marks the first time NASA is using a fixed-price contract to select a US company to build, launch, and operate a spacecraft around another planet. The winner gains a first-mover advantage in future Solar System exploration missions.