Goodbye, ISS: How NASA Plans to Crash the Space Station — and Who Replaces It
On October 9, 2026, NASA did something it has been threatening to do for years: it put the International Space Station’s replacement out to bid. The agency released a final 360-page request for proposals inviting private industry to design, build, and operate the commercial space stations that are supposed to take over low Earth orbit when the ISS comes down. Proposals are due December 8. Awards are expected in the spring — April 2027 is the target — with each selected bidder guaranteed a minimum of $100 million and NASA committed to buying at least four astronaut missions to the winners’ stations.
Read that last part again, because it is the whole story in miniature. NASA, the agency that built and has operated the largest structure ever assembled in space, is planning to become a customer. Not an owner. A customer — one tenant among many, buying rides and research time the way it once bought launches from SpaceX.
It is a staggering pivot, and the clock is already running. The station that has hosted a continuous human presence for more than a quarter century is scheduled to be steered into the atmosphere and broken apart over the remotest patch of ocean on Earth within the next five years. The plan to bring it down safely is one of the most complex disposal operations ever attempted. The plan to replace it is, by NASA’s own watchdog’s assessment, running years behind.
This is the story of how you retire a space station — and the increasingly frantic race to make sure humanity doesn’t lose its foothold in orbit when you do.
The 360-Page Invitation
The October RFP is the culmination of a strategy NASA has been building toward for nearly a decade: the Commercial LEO Destinations program, created to seed a private space-station industry the way the commercial crew and cargo programs seeded private spaceflight. The logic is straightforward. The ISS costs NASA roughly $3 billion a year to operate. A commercial station, shared among government agencies, researchers, manufacturers, and even tourists, could give NASA the microgravity laboratory it needs at a fraction of the price — while freeing the agency’s budget for the Moon and Mars.
Under the solicitation’s terms, NASA isn’t buying stations. It’s buying services: astronaut missions, research capacity, and the assurance that at least one commercial destination will be operating before the ISS is gone. The minimum $100 million guarantee per awardee is meant to give companies enough certainty to keep building; the promise of at least four purchased crew missions is meant to anchor the business case.
For an industry that has spent years building hardware on the promise that NASA would eventually show up with a checkbook, the RFP is both validation and starting gun. The contenders have been positioning themselves for this moment for years. Now they have until December 8 to make their case, and a few months after that, NASA will decide who gets to build America’s next home in orbit.
The December deadline also sets up one of the more consequential bid competitions in aerospace history. Unlike a typical procurement, the prize here isn’t just a contract — it’s a position in the post-ISS economy. Winners get NASA’s money and, just as importantly, NASA’s imprimatur, which unlocks private capital, international partnerships, and commercial customers. Losers may find their stations unfundable. Expect the proposals to be ambitious, the lobbying intense, and the April awards genuinely dramatic.
The Choreography of the Fall
Before anything can replace the station, the station has to come down — and bringing down 450 tons of metal traveling at 17,500 miles per hour is not a matter of simply letting go.
The deorbit plan unfolds in stages. It has, in a sense, already begun: starting in 2026, the station’s orbit is being allowed to decay gradually, with atmospheric drag doing the slow work of pulling it lower. This controlled descent buys time and keeps the station in a safe corridor while the final act is prepared.
The final crew is scheduled to depart in 2030. Then comes the part with no margin for error. A purpose-built spacecraft — SpaceX’s U.S. Deorbit Vehicle, developed under a contract worth up to $843 million — will dock with the station and, over a series of carefully timed burns, push the entire sprawling complex into a final destructive reentry. The target is Point Nemo in the South Pacific, the oceanic pole of inaccessibility: the spot on Earth farthest from any land, where the nearest humans are often the astronauts passing overhead. It is the spacecraft cemetery, the resting place of hundreds of retired satellites and Russia’s Mir station before it.
Most of the station will vaporize in the fireball of reentry, torn apart by heat and aerodynamic forces. But “most” is doing heavy lifting in that sentence. Dense components — titanium tanks, stainless-steel trusses, chunks of the massive solar array wings — can and do survive. That’s why the reentry must be controlled rather than left to chance: an unguided decay could scatter debris across populated areas. The Deorbit Vehicle exists to make sure the fall happens exactly where and when NASA intends, turning a potential catastrophe into a scheduled demolition.
It’s worth pausing on the strangeness of this. The ISS is the most expensive single object ever built — over $150 billion across its lifetime, assembled across 42 flights by five space agencies and fifteen nations. Its end is being planned with the same care as a building implosion, except the building is the size of a football field and the demolition crew has to work in a vacuum.
Meet the Contenders
Four serious bids are expected on NASA’s desk by December, each with a different answer to the same question: what does a space station look like when a company, not a government, builds it?
Vast is the youngest and arguably the most aggressive. Its Haven-1 station — a single-module outpost for four crew, complete with a photo dome and onboard wifi — is targeted for a Falcon 9 launch in May 2026, which would make it the first commercial station ever flown. Haven-1 is deliberately modest: it relies on a docked Crew Dragon to supplement its life support, making it more of a testbed than a destination. The real play is Haven-2, a larger multi-module station Vast is explicitly pitching as the ISS replacement. Vast’s strategy is speed: fly something small now, learn fast, scale up before the ISS comes down.
Axiom Space is taking the opposite approach — the slow merge. Rather than launching a standalone station, Axiom is building modules designed to attach to the ISS first, then detach and form a free-flying station when the ISS retires. Its first segment is targeted for 2026. The advantage is continuity: Axiom’s station would inherit the ISS’s operational heritage and, crucially, could be crewed and operational before the old station’s final days. The risk is complexity: every delay to the ISS timeline ripples through Axiom’s assembly sequence.
Starlab, led by Voyager Space with Airbus, Mitsubishi, and MDA Space as partners, is betting on heavy lift. The station is designed to launch in a single flight aboard SpaceX’s Starship — a brute-force approach that skips years of orbital assembly entirely. Target date: around 2028. If Starship’s development cooperates, Starlab could go from factory floor to fully assembled station in one launch. That’s an enormous “if” doing an enormous amount of work, but the payoff would be a station with a cavernous 8-meter-diameter module offering more research volume than the ISS’s American segment.
Orbital Reef, the Blue Origin and Sierra Space partnership, rounds out the field with a 2027 target and a vision pitched explicitly at mixed use: research, manufacturing, and tourism sharing the same orbital real estate. Blue Origin’s New Glenn rocket and Sierra’s Dream Chaser spaceplane and LIFE habitat modules form the backbone of the plan.
Each proposal is, in effect, a wager on a different theory of the future: Vast bets on speed, Axiom on continuity, Starlab on scale, Orbital Reef on diversification. NASA’s April awards will reveal which theories the agency finds credible — and which companies get the anchor funding to keep going.
The Gap Everyone Is Afraid to Name
Here’s the problem that hangs over every glossy rendering of a commercial station: the schedule doesn’t obviously work.
NASA’s own Office of Inspector General has concluded that a commercial replacement is unlikely to be ready until the 2030s — years after the ISS is scheduled to come down. The Aerospace Safety Advisory Panel, the independent body that watches over NASA’s human spaceflight decisions, has voiced worry about whether the funding and the timeline can hold. These are not outside critics. They are NASA’s own auditors and safety advisers, and their message is consistent: the handoff from the ISS to its successor is the riskiest moment in the history of low Earth orbit, and the margin for error is shrinking.
The politics have noticed. A draft measure before the Senate Commerce Committee would extend ISS operations to 2032 and — more significantly — forbid NASA from deorbiting the station until a commercial replacement is actually operational. It’s a belt-and-suspenders approach: keep the old station flying rather than risk a gap. But extending the ISS isn’t free either. Every additional year costs billions, and the station is aging in ways that money can’t fully fix. Modules launched in the late 1990s are well past their design lives. Cracks, leaks, and failing systems are no longer hypothetical — Russian segment managers have been chasing small air leaks for years, and the station’s original solar wings have degraded enough that NASA just finished a years-long campaign to overlay them with new roll-out arrays.
The deeper fear is what a gap would actually mean. Since November 2000, there has not been a single day without humans in orbit. That unbroken chain — more than a quarter century — is one of the quiet triumphs of the space age. If the ISS comes down before a commercial station is ready to receive a crew, the chain breaks. And it might not be America that restores it.
China’s Tiangong space station is already up there, orbiting at roughly 402 kilometers, permanently crewed in rotation by Chinese taikonauts. If the ISS goes uncrewed first — even temporarily — Tiangong becomes the only game in town, and China inherits the continuous-human-presence record by default. For a program explicitly framed as a competition for leadership in orbit, that would be a bitter outcome: the nation that built the ISS watching from the ground while another country’s flag flies alone overhead.
None of this is lost on NASA leadership. The October RFP’s structure — minimum guarantees, committed crew missions, awards in spring 2027 — is designed to compress the timeline as much as contracting law allows. But rockets, habitats, and life-support systems don’t care about procurement schedules. As one astronaut recently put it about a different program’s timeline, anything can happen.
What Low Earth Orbit Looks Like After
Step back from the schedules and the RFPs, and the transition underway is genuinely historic — bigger, in some ways, than any single station. For sixty years, low Earth orbit has been a government domain: NASA, Roscosmos, ESA, and their partners built it, flew it, and paid for it. The commercial station era flips that model. NASA becomes an anchor tenant. Companies own the real estate. Research, manufacturing, and tourism share the rent.
The economic logic is the same one that transformed launch. When SpaceX proved that a private company could fly cargo — and then astronauts — cheaper than a government program, NASA didn’t mourn the loss of control; it bought the service and spent the savings on deep space. Commercial stations are supposed to be the sequel: NASA spends a few hundred million a year on crew missions instead of $3 billion operating a station, and the difference goes to the Moon.
Whether the business case closes without NASA as the dominant customer is the open question the entire industry is trying to answer. Pharmaceutical companies growing purer protein crystals in microgravity, manufacturers producing fiber-optic cable that’s impossible to make in gravity, tourists paying tens of millions for a week with a window — each is a plausible revenue stream, and none is proven at the scale a station requires. The $100 million minimums and four guaranteed missions in the October solicitation are NASA’s attempt to de-risk the early years. After that, the stations have to fly on economics, not subsidies.
There’s also a subtler shift embedded in the transition: the end of the ISS as a diplomatic instrument. The station was conceived in the 1990s as a way to keep Russian rocket scientists employed and anchor Moscow to the Western order — “the greatest foreign policy achievement of the space age,” as its champions liked to say. Its retirement closes that chapter. What replaces it will be built by companies, under American law, with partners chosen by contract rather than treaty. The symbolism matters: the next era of low Earth orbit will be organized around commerce first and diplomacy second.
The Long Goodbye
For all the procurement language and policy debate, it’s worth remembering what is actually being lost. The ISS has hosted more than 280 people from over 20 countries. It has been the site of thousands of experiments — from cancer research to quantum physics — that could be done nowhere else. It survived the Columbia disaster, the Russian invasion of Ukraine, budget crises, and its own aging with a kind of stubborn grace. Astronauts describe the cupola — the seven-windowed observatory module — as a life-altering place to watch the Earth turn below.
When the Deorbit Vehicle fires its final burns sometime in 2030 or 2031, and the station breaks apart over the empty Pacific, it will be the end of the largest international engineering project in human history. There will be no museum. No monument, except the telemetry. Just a brief, brilliant streak across a dawn sky that almost no one will see, above an ocean where almost no one lives.
What comes next — Vast’s testbed, Axiom’s inheritor, Starlab’s single-launch gamble, Orbital Reef’s orbital business park, or something not yet proposed — will determine whether that ending is a handoff or an interruption. NASA has now officially asked industry to build the future. The proposals are due December 8. The awards come in April. And somewhere above us, the old station keeps circling, its orbit decaying a little more each day, waiting to find out what replaces it.
