NASA Calls on Commercial Partners to Design a Spacecraft to Deorbit the ISS

Note: This article is based on current NASA materials and reputable U.S. aerospace reporting, including NASA’s ISS transition plan, NASA’s U.S. Deorbit Vehicle procurement updates, Reuters, Space.com, CBS News, Scientific American, SpacePolicyOnline, Axios, TechCrunch, and Space Scout. NASA issued its industry request for the U.S. Deorbit Vehicle in 2023 and selected SpaceX in 2024 for a contract with a potential value of $843 million; the launch service is planned as a separate future procurement.

NASA is preparing for one of the strangest retirement parties in human history. There will be no gold watch, no sheet cake in the break room, and definitely no “Happy Retirement” banner fluttering gently in microgravity. Instead, the International Space Station, one of humanity’s greatest engineering achievements, will eventually be guided into Earth’s atmosphere in a carefully controlled fiery finale.

That is why NASA called on commercial partners to design a spacecraft capable of safely deorbiting the ISS. The mission sounds dramatic because it is dramatic: take a massive orbital laboratory, roughly the size of a football field, keep it under control as it descends, and ensure surviving debris falls into a remote ocean area rather than anywhere near people. In spaceflight terms, that is not “taking out the trash.” That is a precision engineering operation with global safety implications.

The spacecraft at the center of the plan is known as the U.S. Deorbit Vehicle, or USDV. NASA’s 2023 request asked U.S. industry for a new or modified spacecraft that could perform the final, critical maneuver to bring the station down in a controlled manner. NASA later selected SpaceX to develop and deliver the vehicle, with NASA taking ownership after development and operating it during the mission.

Why the ISS Needs a Controlled Goodbye

The International Space Station has been continuously crewed for more than two decades and has hosted thousands of experiments in biology, physics, Earth science, human physiology, materials research, and technology demonstrations. NASA says the orbiting laboratory has supported more than 3,300 experiments and remains a cornerstone of space science and commercial activity in low Earth orbit.

But even icons age. The station’s earliest components launched in 1998, and its primary structure has endured decades of dockings, undockings, orbital temperature swings, vibration, radiation exposure, and the ordinary wear-and-tear of living in a place where “outside” means vacuum. NASA has committed to safely operating the ISS through 2030 while preparing for a transition to commercially owned and operated space stations.

The key word is “controlled.” A small satellite may burn up almost completely during reentry. The ISS is not a small satellite. NASA’s deorbit analysis explains that uncontrolled reentry would create a large debris footprint and an unacceptable public-risk problem. U.S. government standards require reentering spacecraft to meet or exceed a 1-in-10,000 public-risk threshold from debris; if that cannot be met, a controlled deorbit is required.

What NASA Asked Commercial Partners to Build

NASA’s call to industry was not a casual “anyone have a spare rocket?” request. The agency needed a spacecraft that could dock or attach to the ISS, remain reliable through a long mission timeline, and execute the final deorbit burn with enough power, redundancy, and fault recovery to work on the first try. There is no convenient second attempt when the world’s largest orbital structure is already on its final descent.

The original NASA procurement allowed companies to propose different contract types, including firm fixed price or cost-plus incentive fee structures. NASA described this as an unusual acquisition approach intended to encourage competition from both traditional aerospace companies and newer space firms. The agency’s own procurement summary says the solicitation allowed bidders to propose a desired delivery date of August 1, 2028, or a required delivery date of May 1, 2029.

NASA’s reasoning was straightforward: existing spacecraft could help, but they did not provide enough margin for the final job. Earlier planning had considered using multiple Russian Progress cargo spacecraft, but NASA and its partners concluded that a new or modified spacecraft would offer more robust capabilities for responsible deorbit operations.

SpaceX and the U.S. Deorbit Vehicle

In June 2024, NASA selected SpaceX to develop and deliver the U.S. Deorbit Vehicle. The single-award contract has a total potential value of $843 million, but that figure does not include the future launch service. NASA said it will own the vehicle after development and operate it during the deorbit mission.

The design is expected to build on SpaceX’s Dragon spacecraft, but this will not be a standard cargo run with a few extra snacks for the astronauts. NASA’s procurement summary describes SpaceX’s USDV concept as Dragon-based with an enhanced trunk section. Space Scout, Space.com, and CBS News reported additional details from NASA and SpaceX briefings, including a beefed-up propulsion system with 46 Draco thrusters, far more than a regular Cargo Dragon configuration.

That extra power matters because the ISS is enormous, delicate, and not designed to be yanked around like a suitcase with bad wheels. The deorbit vehicle must manage thrust carefully so the station remains structurally stable while its orbit is lowered. Think less “push it off a cliff” and more “guide a sleeping elephant down a spiral staircase while carrying a tray of coffee.”

How the ISS Deorbit Is Expected to Work

The planned deorbit strategy combines natural orbital decay, controlled altitude lowering, and a final targeted reentry maneuver. NASA’s procurement summary says the selected approach includes natural decay, intentional lowering of the station’s altitude using current propulsive elements where appropriate, and then execution of a final maneuver to control the debris footprint.

During reentry, much of the station will burn, break apart, and vaporize. Some fragments are expected to survive. NASA’s goal is to target those surviving pieces into a remote, unpopulated region of the South Pacific Ocean. NASA’s USDV procurement summary describes a target footprint of 6,000 kilometers or less in an uninhabited South Pacific region, with environmental impacts projected to be small because toxic liquids or materials are expected largely to burn up during reentry.

This is why precision matters. The station is not simply being “dropped.” It is being retired through a controlled operation designed to minimize risk to people on the ground and to other spacecraft in orbit. That may not sound as glamorous as a launch, but in engineering terms, it is just as impressive.

Why NASA Did Not Choose Other Options

NASA studied several alternatives before settling on a controlled deorbit. Those options included disassembling the station and returning pieces to Earth, boosting it to a higher orbit, letting it reenter naturally, repurposing parts in low Earth orbit, transitioning it to a commercial operator, or continuing operations beyond 2030. Each idea has a certain sci-fi charm, but the practical problems are enormous.

Returning the ISS to Earth sounds greatuntil you do the math

The station was assembled over 13 years with 27 space shuttle flights and 161 spacewalks, according to NASA’s deorbit analysis. The shuttle no longer exists, and no current spacecraft has the same large cargo-bay capability. Disassembling major modules would require a huge amount of astronaut labor, planning, risk, and money. It would be like trying to move a skyscraper by unscrewing it one room at a time while wearing oven mitts.

Boosting the station higher is not a magic parking spot

Putting the ISS into a higher orbit might sound like saving it for future generations, but NASA says the station’s current orbit still experiences atmospheric drag and requires regular reboosts. Moving it much higher would create major transportation and operations challenges for crew and cargo vehicles designed around the station’s existing orbit.

Letting it fall naturally is not acceptable

Natural orbital decay might be simple, but simple is not the same as safe. Because the ISS is so large, NASA determined that uncontrolled reentry would pose too much risk from surviving debris. Controlled reentry is therefore the responsible path.

The Bigger Strategy: From Government Station to Commercial Orbit

The U.S. Deorbit Vehicle is not just about ending the ISS. It is also about making room for the next era of low Earth orbit. NASA wants to become one customer among many in a commercial marketplace where private companies own and operate orbital destinations. Instead of NASA building every station itself, the agency wants to buy services such as crew time, lab space, cargo delivery, and microgravity research access.

NASA has already supported commercial station development. In 2020, NASA awarded Axiom Space a contract for a commercial module to attach to the ISS. In 2021, NASA signed Space Act Agreements with teams led by Blue Origin, Nanoracks/Starlab, and Northrop Grumman to develop commercial space station concepts. Northrop Grumman later joined the Starlab effort.

This transition is a little like moving from a government-built airport to a future where private terminals, cargo operators, research tenants, manufacturing firms, universities, and tourism companies all share orbital infrastructure. The ISS helped prove that long-duration human presence in low Earth orbit is possible. Commercial stations now have to prove that it can be sustainable as a business.

Why Commercial Partners Matter

NASA’s call for commercial partners reflects a shift in how the agency approaches major space infrastructure. Commercial cargo and commercial crew programs showed that private companies could build and operate spacecraft services for NASA while also developing broader markets. The U.S. Deorbit Vehicle extends that model into an unusual but essential category: end-of-life orbital infrastructure management.

That may sound less exciting than launching astronauts, but it is a big deal. Space is becoming more crowded. Governments and companies are launching satellites, building constellations, planning private stations, and thinking seriously about in-orbit servicing. A future space economy needs not only launch vehicles and habitats, but also cleanup plans, disposal systems, tug vehicles, refueling, inspection, and traffic coordination.

In that sense, the ISS deorbit vehicle is both a specialized spacecraft and a symbol. It says the era of “launch it and worry later” is ending. If humans build giant machines in orbit, humans also need responsible ways to retire them.

What Makes This Mission So Technically Difficult?

The challenge is not merely pushing the ISS downward. The vehicle must control a massive, flexible structure moving at orbital speed. The station has large solar arrays, long truss segments, pressurized modules, radiators, docking ports, and international components that were never designed as one simple object to steer through reentry.

The final phase will require careful attitude control, enough propellant, robust software, reliable engines, and the ability to recover from anomalies. NASA’s request emphasized redundancy because failure during the critical burn would not be a minor inconvenience. It would be the aerospace equivalent of missing the exit while driving a bus full of crystal chandeliers.

There is also the matter of timing. The deorbit vehicle must arrive before the final operation, attach successfully, remain functional, and support the station’s controlled descent. NASA and its partners must coordinate operations across agencies, spacecraft, ground teams, tracking networks, and international safety authorities.

What Happens to ISS Science?

The retirement of the ISS does not mean the end of microgravity research. NASA’s goal is to keep using the station through 2030 while commercial replacements mature. Research aboard the ISS has supported studies in medicine, materials science, combustion, fluid behavior, plant growth, Earth observation, and human adaptation to space. Those lessons feed into future Moon and Mars missions, especially through Artemis.

Commercial platforms are expected to continue many of these activities, though likely with different business models. Universities, pharmaceutical companies, manufacturing startups, national labs, space agencies, and private astronaut missions may all become customers. The unanswered question is whether commercial stations will be ready in time, at the right scale, and with enough demand to avoid a gap after the ISS.

Public Safety Is the Center of the Plan

For the average person on Earth, the ISS deorbit mission may feel distant. It is happening hundreds of miles overhead and years in the future. But the reason NASA is planning so carefully is precisely because public safety is not abstract. The station is too large to leave to chance.

A controlled reentry directs debris toward a remote ocean area, reducing risk to populated regions. NASA’s plan also considers environmental effects, spacecraft traffic, international coordination, and the safe conclusion of crewed operations before the final phase. That is the quiet seriousness behind the dramatic headlines.

Experience-Based Lessons From the ISS Deorbit Story

One of the most useful ways to understand this mission is to compare it with ordinary experiences on Earth. Anyone who has ever moved out of a long-lived home, retired a complex machine, or managed a major construction project knows the final step can be harder than expected. Ending something safely often requires more planning than starting it.

Consider an old bridge. Building it is an engineering triumph, but demolishing it safely decades later is also a triumph. You cannot simply swing a wrecking ball and hope for the best. You study the structure, inspect its weak points, close traffic, control the blast or dismantling sequence, protect nearby communities, and clean up afterward. The ISS is that idea moved into orbit, multiplied by orbital mechanics, international law, spacecraft engineering, and the fact that everyone involved is moving at roughly 17,500 miles per hour.

For space enthusiasts, following the deorbit vehicle program is a reminder that spaceflight is not only about liftoff. Launches get the fireworks, livestreams, countdowns, and goosebumps. But responsible space operations include the whole life cycle: design, launch, use, maintenance, repair, replacement, and disposal. The ISS deorbit mission may become one of the clearest public examples of space sustainability in action.

For engineers and students, the USDV offers a fascinating case study in constraints. The vehicle must work with existing ISS interfaces, fit within launch limits, survive a long mission duration, handle a unique thrust profile, and perform a one-time job with extremely high reliability. That is a different design mindset from building a reusable spacecraft or a satellite constellation. It is closer to building a rescue vehicle, tugboat, and demolition controller in one package.

For taxpayers, the story also shows why procurement strategy matters. NASA did not simply announce a need and build everything internally. It asked industry for solutions, allowed different contract approaches, and selected a commercial partner with flight-proven spacecraft experience. Whether one loves or critiques commercial space, this is now central to NASA’s operating model.

For future commercial station operators, the message is even clearer: end-of-life planning cannot be an afterthought. Any company that wants to build the next orbital destination will need to show not only how it launches and earns revenue, but also how it remains safe, serviceable, and disposable at the end of its life. The ISS is setting the precedent, and future stations will be judged partly by how well they plan their own exits.

There is also a human feeling attached to the story. The ISS has been a constant presence for a generation. People have watched it streak across the night sky, tracked it with phone apps, seen astronauts float through its modules, and followed spacewalks from living rooms and classrooms. Saying goodbye to it will feel odd. But a controlled deorbit is not disrespectful to the station’s legacy. In many ways, it honors that legacy by ending the mission with the same seriousness, cooperation, and engineering discipline that made it possible.

Conclusion: A Fiery Ending With a Practical Purpose

NASA’s call for commercial partners to design a spacecraft to deorbit the ISS is about much more than destroying an old space station. It is about public safety, responsible orbital management, international coordination, and the future of commercial low Earth orbit. The U.S. Deorbit Vehicle will help ensure the ISS does not end as a hazard, but as a carefully managed transition point between the first great era of permanent human presence in orbit and the next one.

The International Space Station taught humanity how to live and work in space for long periods. Its final mission will teach another lesson: great space programs need graceful exits. And if the ending involves a Dragon-based spacecraft, dozens of thrusters, and a controlled plunge into the South Pacific, well, NASA has never been known for boring goodbyes.