NASA’s Shift to Mass-Produced Spacecraft

Accessing space has become easier than ever before. Commercial rockets, such as SpaceX’s reusable Falcon 9, have dramatically lowered the cost of launching payloads into orbit. Despite these advancements, NASA is launching fewer telescopes and planetary science missions than it did twenty-five years ago. This decline seems strange given the new launch capabilities. The issue is not simply a lack of money. NASA’s science budget remains steady at $7.25 billion, which is roughly the same as it was in the year 2000 when adjusted for inflation. This stability persists despite political attempts by the Trump administration to cut these funds significantly. The agency faces a structural challenge in how it designs and builds spacecraft, rather than a simple shortage of cash.

NASA’s Science Mission Directorate is under new leadership. Jim Isaacman, the agency’s top science official, wants to accelerate progress. He is advocating for a nuclear-powered spacecraft launch in 2028. This mission would carry three drone rotorcraft to explore Mars. While Isaacman has defended proposed budget cuts as a political appointee, those proposals come from the White House, not NASA headquarters. His focus remains on efficiency and speed.

Nicky Fox, the associate administrator for NASA’s science mission directorate, explains Isaacman’s strategy. She notes that Isaacman wants projects completed faster and for less money. He frequently uses the phrase "more shots on goal." This means NASA should consider smaller, targeted missions rather than always building massive, expensive ones. Isaacman wants to fly ten missions costing $100 million each, rather than just one mission costing $1 billion. This approach would allow scientists to test more hypotheses and explore more targets within the same budget.

A future with many robotic probes across the Solar System is exciting. However, achieving this with flat budgets and billion-dollar projects that take a decade to develop is difficult. Most NASA robotic missions use purpose-built satellites. These are created by large contractors like Lockheed Martin or Northrop Grumman, university labs, or NASA itself. Unlike SpaceX’s hangars filled with reusable rockets, there is no inventory of ready-made spacecraft parts. There are no satellite buses—the core chassis of a spacecraft—waiting on shelves to be equipped with cameras and spectrometers.

Fox asked how the agency could use standard, off-the-shelf spacecraft parts instead of custom-built ones. "Instead of having a bespoke bus that does absolutely everything, and makes the tea and brings you toast, what can you do with an off-the-shelf bus?" she asked. This approach might mean flying fewer instruments per spacecraft, but flying three spacecraft together. The goal is to reduce the long gaps between missions. By standardizing components, NASA could streamline production and reduce the time required to build each unique probe.

Small CubeSats, which are the size of a suitcase, are useful for missions near Earth. They are not suitable for distant destinations like other planets. NASA sometimes uses the International Space Station or commercial communications satellites to collect data. These methods work for some observations but cannot support travel to another world. Traveling to distant planets remains expensive and difficult because the spacecraft must survive harsh radiation and extreme distances.

Fox stated, "For $100 million, you can’t buy a bus from somewhere and put four instruments on it and send it to flight to Enceladus to look under the ice there." Such an ambitious mission requires significant resources. NASA also aims to study interstellar space as older probes like the Voyagers age. Additionally, NASA has discussed a mission to Uranus. While high-cost missions are necessary for deep space, the agency is looking for commercial solutions for missions to the Moon, Mars, Venus, or the asteroid belt. Fox expressed a desire to simply buy ten standard spacecraft platforms if they existed.

NASA is exploring "block buys" for future commercial missions to the Moon. The Commercial Lunar Payload Services (CLPS) program uses private landers and orbiters to carry NASA-owned instruments. These missions serve as testbeds for future human exploration. Mars is the next logical destination for this model. Fox noted, "Mars is sort of an obvious next one." She is excited about the possibilities the commercial sector offers.

Several companies are involved in this effort. CLPS lander partners include Firefly Aerospace, Intuitive Machines, Astrobotic, and Blue Origin. Blue Origin is also working with SpaceX on a human-rated lunar lander. Other companies, such as K2 Space, Rocket Lab, and Vast, are developing mass-produced satellite platforms for Earth orbit or deep space. While these manufacturers primarily serve military and commercial markets, NASA could benefit from their designs. Blue Origin’s "Blue Ring" design is a high-powered hybrid spacecraft. It uses solar electric and chemical propulsion to maneuver around Earth, the Moon, Mars, and asteroids at lower costs. Steve Squyres, Blue Origin’s chief scientist, proposed using Blue Ring to deploy small satellites to prospect for resources near asteroids. Blue Origin won a NASA contract last year to study novel ways to deliver scientific payloads.

Fox summarized her ultimate goal: "How in the hell do I get more science into space? That is my goal."

Although launching payloads into orbit is cheaper now, these savings mostly apply to rideshare missions. Rideshares allow many satellites to share a single rocket to low-Earth orbit. Many NASA Solar System missions cannot use rideshares. They require dedicated launches to higher altitudes or distant targets. Some companies are designing rocket tugs to boost payloads from low orbit to the Moon or beyond. Combined with heavy lifters like SpaceX’s Starship, these tugs could send large spacecraft to faraway places.

In 2025, NASA will likely need to book dedicated commercial rockets for Mars or Venus missions. SpaceX charges $74 million for a Falcon 9 launch. NASA pays more for government requirements and oversight. While this is expensive, it is still far less than the cost of a custom spacecraft and its instruments. Mission selection is another area for change. NASA typically holds competitions for science missions. Research teams propose ideas for telescopes or probes. NASA then selects a few for study before choosing one for development. The agency is considering skipping the study phase to select winners more quickly.

NASA divides planetary science missions into small, medium, and large categories. The smallest missions, costing less than $100 million, have a poor success record. The next category is Discovery, with budgets around $500 million. Between 1996 and 2011, NASA launched 11 Discovery missions. Since then, only three have launched. Two new missions, DAVINCI and VERITAS to Venus, were selected in 2021 but will not launch until the early 2030s. This delay highlights the difficulty of maintaining a steady pace of exploration.

New Frontiers missions are larger, costing about $1 billion. NASA launched three such missions between 2006 and 2016. The next mission is Dragonfly, a $3.35 billion project to Saturn’s moon Titan. It is scheduled for launch in 2028. This launch is 12 years after the previous New Frontiers mission. NASA has not yet selected the mission after Dragonfly. Fox explained that selecting two Discovery missions at once puts stress on the portfolio. "Dragonfly still chugging along... seems to be going at a good pace," she said, despite previous delays. Next year, NASA plans to launch NEO Surveyor, a telescope to track dangerous asteroids. This mission is separate from the Discovery and New Frontiers programs.

Fox noted that Europa Clipper is en route to Jupiter, and rovers are operating on Mars. "We’ve got the two rovers down on the surface of Mars. So there are some pretty big endeavors in planetary," she said. Launching upcoming missions will free up funding for new projects. Fox advised that it is sometimes better to wait for secure funding before calling for proposals. Focusing on keeping Dragonfly on track for 2028 and NEO Surveyor for 2027 is crucial. Accelerating DAVINCI’s launch would also help open a "funding wedge" for future missions.

NASA’s science chief is pushing for a new era of efficiency. By adopting mass-produced spacecraft components and leveraging commercial launch services, the agency hopes to increase the number of science missions. While deep-space exploration remains costly, smaller, standardized missions could provide more "shots on goal." Reducing operational costs for older missions and streamlining selection processes are also key strategies. Fox asked how artificial intelligence could help reduce operation costs. "We spend hundreds of millions of dollars operating legacy missions," she said. "How can you combine operations for a couple of missions, and how do we do it for less?" She does not want to stop these missions because they still produce great science, but the agency must find cheaper ways to run them. These changes aim to balance ambition with budget constraints, ensuring that NASA continues to expand human knowledge of the Solar System.