As the US units its sights on establishing a everlasting base on the moon, its foothold in an space of house a lot nearer to residence is rising extra unsure.
Located in low-Earth orbit — or LEO, a area that stretches as much as 1,200 miles (2,000 kilometers) above floor — the growing old International Space Station has hosted almost 300 people over greater than 25 years of steady habitation, however its retirement is looming. The plan is for brand new house stations developed by business corporations to fill the void, offering residence bases for astronauts from NASA and its worldwide companions.
However, with the International Space Station’s end anticipated as quickly as 2030, NASA is racing in opposition to the clock. And the stakes of having a steady presence in orbit go far past science aims.
Leaving LEO with out a functioning house station on which NASA astronauts can conduct analysis essential to assist missions deeper into house would create a dire hole in the United States’ in-space capabilities and even pose a nationwide safety threat, experts warn.
“It’s an expression of our values. I’ll call it soft power,” mentioned Dylan Taylor, the CEO of Voyager Technologies, one of the corporations concerned in the growth of a business house station idea. “China has a new, advanced space station…so it’s really important that we have continuous human presence on orbit.”
China’s shiny new orbital outpost, referred to as Tiangong, was completed in 2022 and is internet hosting as much as three astronauts at a time to hold out superior analysis tasks. And with a new house station comes the alternative to design spacecraft and different know-how appropriate with it. If the ISS is retired, leaving Tiangong as the solely house station in LEO, many world house applied sciences will evolve to suit it.
Taylor mentioned the state of affairs is like the early days of smartphone growth and the emergence of Apple and Android as the dominant duo. Without a presence in LEO, the United States can be throwing in the towel on a huge alternative to steer on this space, he notes.
And whereas the US has mentioned it would maintain the orbiting outpost afloat till at the very least 2030, lawmakers are actually signaling that won’t enable sufficient time to develop, vet and launch a business house station to exchange the ISS.
A latest Senate invoice referred to as for the United States to proceed funding the ISS as late as 2032. And the legislation, which has advanced out of committee however would nonetheless want approval from the full chamber and the House, makes clear that this extension is vital as a result of a substitute isn’t on the near-term horizon: “NASA has repeatedly delayed the release of a request for proposals for sustained commercial low-Earth-orbit services, and such delays, coupled with shifting requirements and inconsistent programmatic direction, have introduced substantial uncertainty into the development planning, financing, workforce scaling, and infrastructure investment decisions of commercial providers,” the invoice states.
In different phrases, non-public corporations which are in the early design and mockup part of growing these house stations are nonetheless ready on NASA for steerage — and cash.
Policy specialists level out that NASA has lengthy been anticipated at hand down a formal “Request for Proposals” from non-public corporations working to design these next-generation house stations. But these requests had been delayed, partially as a result of it took all of 2025 to cinch a affirmation for Trump’s on-again-off-again pick for NASA administrator, Jared Isaacman. Isaacman was in the end confirmed in December.
Similarly, 2025 noticed a 45-day authorities shutdown, the longest in historical past — including one other hiccup in the house company’s plans to start formally soliciting proposals from the non-public sector. Companies now count on that NASA will concern its Request for Proposals in late March or early April, one CEO instructed NCS.
NASA declined to touch upon the Senate invoice, however its press secretary Bethany Stevens mentioned in a assertion that NASA is dedicated to “the transition of the International Space Station to commercial operations in low Earth orbit (LEO).”
“NASA is taking the time necessary to ensure decisions align with the President’s policy while moving forward as affordably and expeditiously as possible,” Stevens’ assertion reads, referring to President Donald Trump’s latest executive order on house coverage. “Additional details will be shared as soon as they are available.”
Meanwhile, the non-public corporations spearheading the design of these next-generation house stations are shoring up their sources.
Several business outfits have just lately introduced big funding influxes geared toward rushing up the growth and launch of new orbiting outposts.
Houston-based Axiom Space introduced a $350 million funding round final month. Its California-based competitor Vast then notched a $500 million raise in early March.
Vast is decided to launch a bare-bones station to orbit as quickly as attainable, with or with out federal enter, in keeping with the firm.
“Our approach is to actually not wait for (NASA) and get going and build a minimum viable product, single-module space station called Haven-1, which we’re launching into orbit next year,” Vast CEO Max Haot instructed NCS in a cellphone interview earlier this month.
Similarly, Axiom Space is working towards a 2028 launch date for a module that it plans to initially connect to the ISS earlier than breaking off to orbit by itself. A spokesperson instructed NCS that it the firm is “committed” to profitable the NASA contract cash and may proceed pursing such objectives even with out contract awards.
Still, there’s lingering doubt that any of the corporations pursuing house stations will have the ability to keep afloat with out securing a coveted NASA contract or at the very least cinching important enterprise from the public sector.
In that sense, the phrase “commercialization” may be a misnomer. Not many private-sector corporations have an pressing must spend hundreds of thousands of {dollars} to ship individuals or analysis tasks to an orbiting laboratory, so NASA and different authorities companies are doubtless the major prospects for these space-bound locations.
“Privatization” may be a extra correct descriptor — at the very least proper now.
“For a venture investor, that near-term picture is a little bit rocky,” mentioned Phil Scully, the cofounder and normal companion of Balerion Space Ventures, which led Vast’s latest fundraise.
But in the distant future, there’s potential for a bustling house economic system: “What’s obvious to us is you’re going to have multiple vehicles with myriad companies go into space. You’re going to have vehicles leaving from celestial bodies, like the moon. And we need a habitat,” Scully mentioned, including that house stations in LEO will ultimately serve each a nationwide safety and analysis function.
That long-term image is giving some enterprise capitalists the confidence to begin backing business house station operators, Scully mentioned, even when the return-on-investment is years or many years down the line.
Still, earlier than that future can unfold — NASA will function a kingmaker of kinds. The house company will consider proposals from Vast, Axiom Space, and a number of different opponents, together with Jeff Bezos’ Blue Origin, Max Space and Voyager Technologies.
It will likely be as much as house company officers to find out which firm has the finest shot at success and hand down the contracts, that are anticipated to be given out between 2026 and 2031 and will doubtless total up to $1.5 billion.
That’s nonetheless a paltry sum in comparison with what it took to construct the football-field-size ISS, which is broadly thought of the single most costly object ever constructed at greater than $150 billion. It additionally prices the US roughly $3 billion per 12 months to function.
With the forthcoming NASA contract cash, the corporations are pursuing an array of completely different methods and ideas, which at this time exist principally in the kind of precursor prototypes, tech demonstrations and laptop renderings — every with a modern, futuristic atmosphere.
Vast’s Haven-1 module, for instance, is designed to have just 45 cubic meters (1,500 cubic feet) of habitable volume, with smooth white partitions accented by maple wooden veneer slats that conceal analysis devices in the partitions. It’s slated to launch as quickly as 2027, with plans to quickly develop the habitat in the following years.
Orbital Reef — which is half of a partnership amongst Blue Origin, Sierra Space, Boeing and others — is billed as a “mixed-use business park” that may scale as much as about 830 cubic meters of pressurized quantity.
Other corporations’ ideas provide an array of completely different accoutrements and capabilities, together with inflatable habitat designs, sprawling home windows, robotic arms, analysis labs and astronaut lodging.
(The Orbital Reef and Starlab — a three way partnership from Voyager Space, Northrop Grumman and a number of different corporations — have every acquired multimillion-dollar contracts for design growth from prior Space Act Agreements with NASA.)
Meanwhile, the International Space Station is grappling with the put on and tear that comes with age. In latest years, it has confronted leaks and micrometeoroid strikes, and the orbiting laboratory often requires “costly maintenance and system upgrades,” in keeping with NASA’s inspector general.
But stakeholders are warning about the dangers of decommissioning the ISS earlier than a business substitute is prepared — and as issues stand, it is removed from sure a new orbital outpost will likely be in place in time.
“It is increasingly clear that the remaining station life is insufficient to meet all critical test and research objectives necessary to support development and reduce risk for the Artemis campaign and beyond,” NASA’s Aerospace Safety Advisory Panel (ASAP), a committee that gives security suggestions to NASA and Congress, wrote in an annual report released final month.
The spillover results of leaving the US with out a LEO house station transcend the instantly apparent, mentioned Space Foundation CEO and retired United States Air Force main normal Dr. Heather Pringle.
“A lot of people think that national security only rests on the military, but frankly, national security and economic prosperity — they go hand in hand,” mentioned Pringle.
And the financial significance of LEO, Pringle added, is excess of simply the monetary growth that enterprise capitalists are starting to check. This space of house is turning into a stage for worldwide commerce.
“Just as the Panama Canal became a symbol of American leadership and a vital artery for global trade, LEO will become the pathway to scientific discovery, economic growth and peaceful coexistence — if the U.S. maintains thoughtful leadership and fosters international cooperation and new technological development,” mentioned Axiom Space CEO Tejpaul Bhatia in a 2025 op-ed.
Pringle famous that she’s assured Isaacman, who beforehand ran a protection and army coaching firm earlier than turning into NASA chief, will take the vital steps to make sure the US doesn’t cede floor on the geopolitical stage.
For many years, the International Space Station has been the solely vacation spot to which US astronauts have been capable of fly. And even with the Artemis program promising flights to the moon, it could possibly be years or many years earlier than such missions are routine.
Another complicating truth: Russia, the United States’ major companion on the ISS, has not pledged to maintain working its half of the house station previous 2028. It’s not clear how a Russian withdrawal may impression the United States’ operations or the sources required to keep up the station.
What is clear: Without a house station in LEO, American astronauts could possibly be left stranded on Earth for lengthy durations of time. And that’s a less-than-ideal situation to be in, contemplating that the US has constantly had at the very least one astronaut in house for the final 26 years.
Importantly, analysis in LEO additionally serves as a necessary stepping stone for gaining the data NASA must maintain its astronauts protected on journeys deeper into the cosmos.
“This strategy will be important to ensure we maintain a continuous presence in lower orbit to support a number of objectives, including uninterrupted research Moon and Mars, both as a test pattern for human health and overall leadership in space,” a member of NASA’s ASAP assembly mentioned throughout a March 16 assembly.
NASA’s Artemis program is sending people into deep house for the first time in additional than 5 many years. Sign up for Countdown newsletter and get updates from NCS Science on out-of-this-world expeditions as they unfold.