Firefly Aerospace has moved from celebrating its successful soft landing on the Moon to putting the engineering model for its next lunar lander through environmental testing at NASA's Jet Propulsion Laboratory. The brevity of the announcement — a single sentence from NASA — understates the structural significance: this is the commercial lunar pipeline operating as a production system, not a one-off achievement. The testing at JPL involves what spaceflight engineers call 'shaking things up' — vibration and environmental testing that subjects the lander's engineering model to the forces it will experience during launch and transit. This is standard practice for any spacecraft, but the fact that it's happening for Firefly's second lander while the first mission's success is still recent tells you something about cadence. The gap between missions is compressing. Firefly operates under NASA's Commercial Lunar Payload Services (CLPS) programme, which contracts private companies to deliver payloads to the Moon. CLPS is structurally modelled on how NASA transitioned low-Earth orbit cargo and crew delivery to SpaceX and Northrop Grumman — fixed-price contracts where NASA buys a service rather than managing a programme. The model shifts development risk to the contractor and, in theory, drives down cost per mission while increasing flight rate. The generative case for CLPS is real: it has already produced successful landings from both Intuitive Machines (February 2024, with caveats — the lander tipped over) and Firefly, building a small but growing commercial lunar capability that did not exist five years ago. JPL's role as the testing facility means NASA's deep technical infrastructure is being used to de-risk commercial hardware — a sensible use of institutional knowledge that would otherwise sit idle between NASA's own flagship missions. The efficiency question is harder to assess from a one-sentence announcement. What we know: CLPS contracts are fixed-price, which caps NASA's exposure. What we don't know from this source: the actual contract values, the cost per kilogram delivered to the lunar surface, or how Firefly's economics compare to Intuitive Machines or other CLPS vendors. The programme's track record includes failures — Astrobotic's Peregrine lander suffered a propellant leak in January 2024 and never reached the surface — which is the expected cost of a commercial model that accepts higher risk per mission in exchange for lower cost and higher cadence.