Update on Vast’s space station plans

Haven-2
Haven-2 station once completed

Link here. The article provides a very detailed look at Vast’s short and long range plans, including its overall strategy to win NASA’s full space station construction contract by first building, launching, and occupying its small scale Haven-1 station and thus demonstrating it is the right company for NASA to finance its full scale Haven-2 rotating space station (shown in the graphic to the right).

The article notes that Vast intends to complete Haven-1’s primary structure in July, and do environmental and vibration ground testing from January to March 2026, with its planned launch on a Falcon 9 rocket in May 2026. Once launched it plans to put crews on board for a total of 30-days (though it is unclear at this moment whether that will be a single mission or a series of shorter flights).

In addition, the article reveals that the company also hopes to do two spin tests of Haven-1, testing its ability to rotate and create an artificial gravity. That aligns with the goal of Vast’s full scale Haven-2 station, which it wants to rotate as well. Since the plan is to assembly Haven-2 from upgraded Haven-1 modules, these spin tests are essential for proving the larger station’s design.

Based on this new information, I think we can now map out the evolving but still subject-to-change manned operations at Haven-1, comprising several short 3-5 day manned missions. The first will the crew test the module’s operation. The next two will be to do these spin tests, with people on board.

Vast’s strategy is fundamentally different than the other proposed stations (all listed below). Instead of taking a small NASA development grant to create designs on paper, it is spending its own money to actually launch a demonstration station. If successful, this strategy will make it very easy for NASA to pick it when the time comes to award the larger station construction contracts.

My present rankings for the four proposed commercial stations:

  • Haven-1, being built by Vast, with no NASA funds. The company is moving fast, with Haven-1 to launch and be occupied in 2026 for an estimated 30 days total. It hopes this actual hardware and manned mission will put it in the lead to win NASA’s phase 2 contract, from which it will build its much larger mult-module Haven-2 station..
  • Axiom, being built by Axiom, has launched three tourist flights to ISS, with a fourth scheduled for early June, carrying passengers from India, Hungary, and Poland. Though there have been rumors it has cash flow issues, development of its first module has been proceeding more or less as planned.
  • Starlab, being built by a consortium led by Voyager Space, Airbus, and Northrop Grumman, with an extensive partnership agreement with the European Space Agency. It recently had its station design approved by NASA.
  • Orbital Reef, being built by a consortium led by Blue Origin and Sierra Space. Overall, Blue Origin has built almost nothing, while Sierra Space has successfully tested its inflatable modules, including a full scale version, and appears ready to start building its module for launch.

Vast signs three more customers to fly payloads on its first space station

Haven-1 with docked Dragon capsule
Haven-1 with docked Dragon capsule

The space station startup company Vast has now signed up three more customers to fly payloads on its first space station, Haven-1, due to launch now in the spring of 2026 on a 30-day-long private commercial manned mission.

Vast announced April 8 that Japan Manned Space Systems Corporation (JAMSS), Interstellar Lab and Exobiosphere will fly research payloads on the Haven-1 station launching no earlier than May 2026. They join Redwire and Yuri as payload partners for the station.

JAMSS, which has supported research on Japan’s Kibo module on the International Space Station, will provide a multi-purpose payload facility for microgravity research on Haven-1. Interstellar Lab, a French company, will provide an advanced life sciences research facility called Eden 1.0 that will be used for experiments such as plant growth. Exobiosphere, based in Luxembourg, will fly a biotechnology payload to perform pharmaceutical and healthcare experiments.

The company says it still has one or two payload racks available for additional customers, suggesting that it is finding enough demand to justify profitable commercial operations.

Below are the four private space stations presently under development, with those I consider the most advanced in development ranked first:

  • Haven-1, being built by Vast, with no NASA funds. The company is moving fast, with Haven-1 to launch and be occupied in 2026 for a 30 day mission. It hopes this actual hardware and manned mission will put it in the lead to win NASA’s phase 2 contract, from which it will build its much larger mult-module Haven-2 station..
  • Axiom, being built by Axiom, has launched three tourist flights to ISS, with a fourth scheduled for this spring, carrying passengers from India, Hungary, and Poland. Though there have been rumors it has cash flow issues, development of its first module has been proceeding more or less as planned.
  • Orbital Reef, being built by a consortium led by Blue Origin and Sierra Space. Though Blue Origin has apparently done little, Sierra Space has successfully tested its inflatable modules, including a full scale version, and appears ready to start building the station’s modules for launch.
  • Starlab, being built by a consortium led by Voyager Space, Airbus, and Northrop Grumman. It recently had its station design approved by NASA.

Vast delays launch of Haven-1 space module to May 2026

Haven-1 with docked Dragon capsule
Haven-1 with docked Dragon capsule

The space station startup Vast yesterday announced that it had revised its overall schedule, delaying the launch of its Haven-1 space module from August 2025 to May 2026.

Based on their testing program this delay had become increasingly expected. They have only now begu testing of the primary structure qualification article of this module, with it passing its first pressure tests. Vibration testing is still to come. This makes the August 2025 target date impossible.

The plan now is to begin construction of the actual module as soon as this testing is complete in about a month, with the primary structure ready in July. Integration and testing will then follow to be completed by March 2026.

The launch of Haven-1 on a Falcon 9 rocket is now targeting May 2026, with its 30-day four-person crewed mission to launch no earlier than the end of June 2026.

As the company notes,

Vast was founded in 2021. At the time, NASA had already launched the CLD program and awarded funding to [three] other [space station] companies. Recognizing the need for a leapfrog strategy, we developed Haven-1 to set us apart. When NASA selects its partner(s) to carry forward its low-Earth orbit (LEO) legacy, we will be the only company operating a crewed space station—one we designed, built, tested, and verified for safety entirely in-house.

…Every lesson learned from Haven-1 will be applied to our CLD Phase II proposal—Haven-2. No team will have more operational experience than Vast. No design will carry as much flight heritage. No company will be better positioned to deliver for NASA as fast—thanks to our work and over $1 billion investment in Haven-1 ahead of CLD Phase II.

This strategy all depends of course on getting Haven-1 launched as planned. Based on the company’s operations so far, the odds appear high that it will meet this new schedule. There are no guarantees however.

SpaceX and Vast jointly request research proposals for first mission to Vast’s Haven-1 space station

Artist's rendering of Haven-1 interior
Artist’s rendering of Haven-1 interior.
Click for original.

With the launch of Vast’s single module space station Haven-1 still scheduled for August, SpaceX and Vast have jointly requested research proposals (here and here) for station’s first manned mission, expected to be a four person 30-day flight soon thereafter. From the Vast press release:

Building on their established partnership, the two companies seek high-impact research projects to support humanity on Earth and advance our capacity to live and work in Earth orbit and beyond. Submitted proposals will be evaluated based on scientific and technical merit, feasibility, and alignment with mission objectives. Approved research proposals will be able to leverage the capabilities of the Haven-1 Lab, Dragon spacecraft, and/or private astronaut missions to the International Space Station (ISS).

Haven-1 is the only one of four commercial space stations being designed or built that has taken no NASA money. It also appears it will be the first to launch, thus putting it an excellent position to win the larger space station contract from NASA to build its much larger Haven-2 station.

Though neither SpaceX nor Vast are offering any funding for these proposals, they offer researchers access to space quickly and with relatively little bureaucracy (something all scientists routinely face in working with NASA). Researchers who fly on that first mission will also become well positioned to win further NASA research space station contracts later on.

Vast signs astronaut agreement with Czech government

The space station startup Vast has announced it has now signed an agreement with the Czech government to possibly fly one of its astronauts to the company’s Haven space stations, either the smaller Haven-1 or the full size Haven-2 to follow.

Any future mission with Vast could see Aleš Svoboda, one of 12 reserve astronauts selected by the European Space Agency in November 2022, become the second Czech astronaut. Svoboda has been a focal point for the Czech government’s efforts to stimulate growth in the Czech space industry and inspire the country’s young people to pursue STEM careers, crystallized by the launch of the Czech Journey to Space project in June 2024.

In September 2024 the Czech government had signed a similar agreement with Axiom. Under that agreement, Svoboda would fly to ISS. This new deal opens the possibility he will fly elsewhere.

It is very possible the Czechs want to do both, and are covering their bets by signing both agreements. In either case, no mission dates have been set.

Vast unveils its proposed full space station concept

Haven-2
Haven-2 station once completed

After revealing the layout planned for its first single module space station dubbed Haven-1 last week, the startup Vast today unveiled its proposed full space station concept, dubbed Haven-2.

The graphic to the right is a screen capture from the video describing the step-by-step assembly of this larger station. Initially it will be comprised of four modules, linked together in a straight line. This confirguration is aimed at winning a space station contract from NASA when it announces the winners in the second phase of its commercial space station program in mid-2026. If picked, Vast then intends in the expand that four-module station to the eight modules illustrated in the graphic.

Between 2030 and 2032, Vast will add a larger 7m diameter core module and four more Haven-2 modules, fully realizing the next-generation commercial space station capable of meeting the needs of international partners, NASA, commercial researchers & manufacturers, and private astronauts.

Key features of the completed station include an unprecedented 3.8m diameter cupola window, external payload hosting capabilities, a robotic arm, visiting vehicle berthing capabilities, external payload airlock, and an extravehicular activity (EVA) airlock to support customers’ needs. Each module will also feature two Haven-1-like 1.1m dome windows, totaling 16 windows by 2032.

Vast’s design is projected to surpass all other proposed on-orbit space stations in terms of volume, functionality, and operational efficiency.

Vast’s overall plan is quite ambitious, but well thought out. If all goes as planned, just as NASA is about to decide on the winners in phase 2 of its space station program, Vast plans to launch in 2026 its Haven-1 station and immediately fly a manned 30-day mission to it, using SpaceX rockets and Dragon capsules. If successful, that private mission will do wonders in convincing NASA to pick Vast.

Vast unveils its first preliminary design for the interior of its Haven-1 space station

Artist's rendering of Haven-1 interior
Artist’s rendering of Haven-1 interior.
Click for original.

Vast today revealed its first preliminary design for the interior of its Haven-1 space station that it hopes to launch in the second half of 2026 and immediately occupy with four astronauts for a 30-day mission.

After docking with a SpaceX Dragon spacecraft, Haven-1 crew members open the Haven-1 exterior hatch and are greeted by a sleek, functional layout upon entry. A real-time display shows the station status with temperature and lighting controls, and optimized cargo compartments ensure essential supplies are stored efficiently. Notably, Haven-1’s interior surfaces are soft and padded to provide an added safety component for crew and visitors as they float throughout.

Above and below the corridor, the station’s four private crew quarters offer astronauts a space to rest and recharge. Slightly larger than the crew quarters aboard the ISS, these expanded personal rooms are uniquely designed to allow for changing, entertainment, online communication with loved ones back on Earth (enabled by SpaceX Starlink connectivity), and, most importantly, a good night’s rest. Experience has shown that sleeping in space can be a restless endeavor. Maximizing sleep efficiency and comfort remains critical to the overall experience aboard the Vast station. Historically, zero gravity sleep has been uncomfortable for astronauts due to a lack of standardized and consistent restraint systems during weightless sleep and a deficit in the distributed gravity forces humans are accustomed to on Earth. Vast’s patent-pending signature sleep system is roughly the size of a queen bed, provides a customized amount of equal pressure throughout the night, and accommodates side and back sleepers alike.

Additionally, each room features a built-in storage compartment, vanity, and a custom amenities kit

Beyond the corridor with the crew quarters is a common area which also includes a laboratory rack system on one wall, where experiments can be installed, monitored, and performed.

Overall the interior of this single module station in many ways harks back to the early Soviet Salyut stations, as the amount of interior space is somewhat comparable. One feature of Vast’s design however that is truly original is the use of “genuine safety-tested, fire-resistant maple wood veneer slats” on the interior’s walls.

Though definitely designed with that 30-day mission in mind, this first release clearly looks preliminary, with the graphics appearing far simpler than things will look in reality.

Vast announces first two customer payloads on its Haven-1 space station

Vast Haven-1 station inside Falcon-9 fairing
Vast Haven-1 station inside Falcon-9 fairing

The space station startup Vast today announced the first two customers planning to place payloads on its Haven-1 single module space station, presently scheduled for launch in the second half of 2025.

The company also revealed that these payloads will be installed on the station in what it calls its Haven-1 Lab, which is essentially a variation of the payload rack system used on ISS.

The Haven-1 Lab features 10 Middeck Locker Equivalent payload slots, each roughly the size of a microwave. Each payload slot can weigh up to 30 kg (66 lbs), is provided with 100 W of continuous power, and has access to an Ethernet data connection. Payloads will be operated by the astronaut crew on Haven-1, as well as commanded and monitored by ground operators via Starlink laser links, providing Gigabit/s speed, low latency connectivity. Partners will have the opportunity to return products and samples from space via a SpaceX Dragon spacecraft.

In tandem with Vast’s announcement of its Haven-1 Lab, the company also announced Redwire and Yuri as its inaugural partners, representing some of the foremost experts in the development of microgravity payloads.

Redwire has flown numerous payloards already to ISS, including cutting edge 3D printers. Yuri is less well known, but it appears both it and Redwire are taking advantage of Vast’s much simpler paperwork requirements than NASA’s. Vast has taken no NASA funds, so it can approve payloads at its whim. Speeds things up, saves money, and everyone benefits.

These payloads will likely be part of the first Haven-1 manned mission, where four astronauts will spend 30 days in space, ferried to and from the module using a Dragon capsule and launched almost immediately after Haven-1 is placed in orbit.

Japanese company proposes building a module to add to Axiom’s space station

Axiom's space station assembly sequence
The assembly sequence for Axiom’s space station while attached to ISS.
Click for original image.

The Japanese company Mitsui has now proposed building a module — based on Japan’s HTV cargo freighter that did several missions to ISS — and sell it to the commercial space stations now under construction.

Mitsui has created a subsidiary called LEO Shachu to develop the module. What makes this project very likely to happen is that Mitsui is also an investor in Axiom’s space station, and according to the article at the link, a Axiom official who is also a retired Japanese astronaut who flew to ISS has expressed interest in it.

This story also helps outline the international landscape of the future stations. While Voyager Space’s Starlab station has been partnering extensively with Europe and Airbus, Axiom appears to be partnering more closely with NASA and Japan. The third station that has obtained NASA money, Blue Origin’s Orbit Reef, had made an earlier deal with Mitsubishi, but appears to have obtained few other outside partners, and that Mitsubishi deal only involved “development work,” not specific hardware. Moreover, Mitsubishi later made a new deal with the Starlab station, suggesting it had broken up with Blue Origin.

A fourth station, being built by the private company Vast with no NASA money, has partnered with SpaceX and ESA. It is also likely to be the first to launch its first module in August 2025, followed soon thereafter by a 30 day 4-person Dragon mission.

French startup gets another space station cargo contract

The French startup The Exploration Company has gotten its fourth contract for its proposed Nyx unmanned reusable cargo capsule, signing a deal with Vast to fly one freighter mission to its proposed second Haven station.

This startup, which has not yet flown anything, already had contracts to fly one cargo mission to ISS (a demo mission for the European Space Agency), one to Axiom’s space station, and three to Voyager Space’s Starlab station. This new contract means The Exploration Company already has a manifest of six missions.

These contracts pose a puzzle. Why is this startup getting all these deals, but not Northrop Grumman’s Cygnus or SpaceX’s Dragon capsules? Or have these two American companies signed deals without the same PR splash?

ESA signs deal with Vast to use its Haven-1 space station

Vast Haven-1 station inside Falcon-9 fairing
Vast Haven-1 station inside Falcon-9 fairing

The European Space Agency (ESA) and the commercial space station startup Vast today signed an agreement that sets the initial terms for ESA to use Vast’s first space station, Haven-1, as well as any space stations to follow.

The agreement outlines the parties’ intention to foster human spaceflight, science, technology and commercialisation development and explore collaboration in low Earth orbit destinations other than the International Space Station. The collaboration will initially focus on exploring opportunities for access to space for Europe through the Vast Space Stations. These could include:

  • Access to the Vast Space Stations for ESA and its Member States, for astronaut missions and research activities as well as commercial business development.
  • Supporting European industry to supply subsystems and equipment for future Vast Space Stations.
  • Vast making use of future qualified European LEO cargo and/or crew transportation services, at market rates and commercially viable terms and conditions, also as a means for offsetting future ESA Astronaut Missions.
  • Vast and ESA jointly supporting European industry in getting certified for docking to future Vast Space Stations.

This deal is actually a very big deal, as Vast’s Haven-1 space station is the only one under construction that does not have a deal with NASA. It is being financed privately and will at first simply be a one module habitat set to launch as early as August 2025 on a Falcon 9 rocket, with the first 30-day 4-person manned mission to follow almost immediately on a Dragon capsule. Vast’s work is closely linked with SpaceX, as its station also has a deal to use Starlink for communications.

The plan is to add more modules in the coming years to build up to a full station.

This deal not only indicates that this independent station is going to give the NASA-supported stations some real competition, it indicates that Europe is committed to doing the same. Now that Europe has abandoned the government-owned and international cooperation model it has used for decades with decidedly mixed results and switched to the capitalism model, where it is merely a customer buying things from a competing private sector, it is doing so full speed ahead, without any hesitation.

The independence of this station also frees it and its customers from the heavy rules that NASA routinely imposes on anyone who deals with it. This aspect gives Vast a competitive advantage that many will clearly wish to take advantage of.

This deal is therefore a challenge that better be recognized by NASA and the other commercial stations. If they don’t react properly they could find themselves left in the dust completely.

Vast to compete with Axiom for NASA’s limited slots for commercial manned missions to ISS

The private space station company Vast, the only one presently building its own space station without a NASA contract, has now announced that it intends to to compete with Axiom for the limited docking slots NASA has made available for commercial manned tourist missions to ISS.

During a panel discussion at the Federal Aviation Administration Commercial Space Transportation Conference Feb. 21, Max Haot, chief executive of Vast, said his company would bid on the fifth and sixth private astronaut missions, or PAMs, that NASA offers to companies seeking to flying commercial missions to the ISS. “From our point of view, it will make us a better space station builder, a better partner of NASA, and it will help us practice a lot of the disciplines we are building” for its future commercial stations, he said of Vast’s plan to bid on the missions.

Up until now, Axiom has had no competition for those limited docking opportunities, has flown two missions, with a third planned for this fall. All it needed to do is negotiate the rental fees with NASA for using ISS. Now NASA will need to open up bidding for those slots. Its job is not to play favorites, but to instead make its taxpayer-funded facilities available to as many private companies as possible. Whether it will do so is at present unclear.

Vast’s own space station, a single module to be launched on SpaceX’s Starship/Superheavy, dubbed Haven-1, is scheduled for launch next year according to Vast officials. If so (assuming SpaceX’s rocket is operational by then), Vast will be the first private space station in orbit, beating Axiom and the two consortiums building Orbital Reef and Starlab. And it will have done it without taxpayer money.

SpaceX to launch Vast’s first space station module as well as two manned missions to it

Vast Haven-1 station inside Falcon-9 fairing
Vast Haven-1 station inside Falcon-9 fairing

SpaceX and the private space station company Vast today revealed a deal whereby SpaceX will use its Falcon 9 rocket to launch VAST’s first space station module, dubbed Vast Haven-1, followed soon thereafter by two manned missions using SpaceX’s Dragon capsule and lasting up to 30 days.

The announcements claim that first launch will occur by August 2025, which will make it the first privately-owned manned space station to reach orbit, well ahead of the plans by the three space station companies that NASA has issued contracts (by teams led by Northrop Grumman, Sierra Space, and Nanoracks). The only other private station hoping to beat this date, Axiom, won’t be flying independent, but will be attaching its first module to ISS in 2024.

In addition, Vast says that this module will be the incorporated into its proposed larger spinning-wheel station.

Vast is owned and financed by billionaire Jed McCaleb, who doesn’t need NASA seed money for development. In fact, it appears he and SpaceX want to remain as independent of the government as possible, considering the high fees NASA is charging to dock and stay at ISS as well as the stringent research rules it is demanding from private astronauts. This approach also appears to be the same one that Jared Isaacman is taking with his series of private missions on Dragon and Starship.