Space Tech
Factories in Orbit: The Next Industrial Revolution
In February 2024, Will Bruey watched a small capsule from Varda Space streak back through the atmosphere. It was his company’s first attempt to return a product manufactured in orbit to Earth. Inside were…
In February 2024, Will Bruey watched a small capsule from Varda Space streak back through the atmosphere. It was his company’s first attempt to return a product manufactured in orbit to Earth. Inside were crystals of ritonavir, an HIV medication manufactured in microgravity. With that landing, Varda became only the third company ever, after SpaceX and Boeing, to return material from space.
The capsule had gone up eight months earlier, carrying a small pharmaceutical setup. In orbit, the drug is mixed and cooled in ways that aren’t possible on Earth. It returned with a rare polymorph of ritonavir, a crystal form that may improve the drug’s performance. To Bruey, this wasn’t just a scientific milestone. It was proof that space manufacturing might actually become an industry. He imagines a future where small spacecraft routinely return from orbit every night carrying batches of medicines made in weightlessness.
With rockets getting cheaper and the benefits of microgravity becoming clearer, that future no longer feels distant. Space may soon be more than a place to explore; it might be where some of our most advanced medicines are made.
Why Microgravity Changes Everything About Manufacturing
The biggest advantage of making things in space comes from a basic fact: without gravity, everything behaves differently. Crystals don’t sediment, materials don’t deform, and fragile tissues can grow without collapsing. That’s why Varda was able to create cleaner, more uniform ritonavir crystals in orbit than anything possible in an Earth lab.
Redwire has been proving this with biology, too. In April 2024, it 3D-printed living human heart tissue on the ISS. Not long after, its facility grew a human knee meniscus for two weeks in microgravity before returning it to Earth for analysis. These early results hint at a future where replacement tissues, and maybe even organs, can be grown without the same risks or shortages we face today.
Drugs stand to benefit as well. In weightlessness, crystals grow more evenly, making medicines more stable and easier for the body to absorb. Redwire has already run multiple experiments on different drug types through partnerships with companies like Eli Lilly.
For founders exploring this field, the idea is straightforward: space may be harsh for people, but it’s perfect for making precise, high-value products. Instead of fighting gravity, they’re learning to use its absence to build things that Earth simply can’t produce.
The Varda Playbook: Making Space Manufacturing Routine
Varda’s work shows how quickly space manufacturing is moving from big ideas to real business. By the end of 2025, the company had already flown several missions and was preparing to move from test runs to steady production. Their small W-Series capsules, about the size of a kitchen trash can, launch on SpaceX rideshares, make drugs in microgravity, and come back to Earth at more than 18,000 miles per hour before landing at their designated test sites in Utah or Australia.
A major turning point came when Varda became the first company to get an FAA Part 450 reentry license. Instead of filing full safety paperwork for every landing, they now have a standing approval that lasts until 2029. That level of regulatory stability is rare in commercial space and enables scalable operations.
Backed by $329 million in funding, including a large Series C round in 2025, Varda is pushing toward frequent space-based manufacturing. Their business model focuses on medicines that need only a tiny crystal formed in microgravity. The rest of the drug is made back on Earth. This keeps launch mass low and revenue high, exactly what you want when sending hardware into orbit is still expensive.
Redwire: Building the Infrastructure for Tomorrow's Orbital Economy
While Varda sends capsules to space and brings them back full of materials, Redwire is taking another route: it’s building the factories of orbit. The company has set up ten research facilities on the ISS, more than anyone else in the commercial sector, and many more are in development for future space stations.
Redwire’s 3D-printing lab has been running in orbit since 2016, turning out more than 200 tools and components. Recently, it even recycled plastic packaging from the station and turned it into radiation-shielding parts, suggesting a future where deep-space missions can manufacture essential components on-site rather than transporting them from Earth.
In March 2025, the ISS produced its first metal parts ever, thanks to ESA’s Metal 3D Printer, and Redwire’s equipment now lets researchers test materials under different levels of gravity, from microgravity to Moon or Mars levels, all with the same machine. That kind of flexibility keeps the equipment in use and helps the economics of space manufacturing make sense.
Demand is growing fast, and Redwire has started building a new 30,000-square-foot facility in Indiana to support more microgravity research and manufacturing.
The Economics: When Does Space Beat Earth?
Anyone thinking about building products in space eventually asks the same thing: when does it actually pay off? The answer depends on how valuable the product is, how heavy it is, and what microgravity can do that Earth can’t.
Launch prices have fallen fast. What used to cost tens of thousands of dollars per kilogram now costs roughly $3,000 per kilogram on orbital rideshare missions. That’s why some products, like specialty drugs worth tens of thousands of dollars per gram, already make sense to produce in orbit. The same goes for bioprinted tissues that could save lives, or fibre optics that come out far cleaner in weightlessness.
Will Bruey believes the economy will only get better. Cheaper launches open the door for more products. More products lead to more launches. And more launches push prices down again. Eventually, he says, it might even be cheaper for people to work in orbital factories for a month at a time than to build the next generation of automation.
For entrepreneurs, the message is simple: you don’t need perfect economics to start. Find a niche where microgravity gives you a real edge, get in early, and grow as the industry scales. The companies that enter first gain the knowledge and relationships that everyone else will struggle to catch up to.
The Challenges and the Future Path Forward
Space manufacturing isn’t all excitement; there are real hurdles. Varda learned that the hard way when its first capsule stayed in orbit for eight months while the FAA sorted out its reentry license. The technical side isn’t easy either. A spacecraft has to survive violent launch shaking, months of radiation, and then reenter the atmosphere glowing at thousands of degrees. And building all of this isn’t cheap. Varda has already raised $329 million, and both Varda and Redwire are spending heavily as they grow.
Still, the road ahead looks clearer than it did a few years ago. Varda has more missions lined up, including W-5 in 2025. Redwire has sixteen experiments planned for its PIL-BOX system. New commercial stations, Axiom, Orbital Reef, and Starlab, are on the way, each offering more room and better infrastructure than the ISS ever could. These stations are being built for companies, not just astronauts, with power and cooling systems meant for real industrial work.
Other countries are moving in the same direction, building their own systems to avoid relying on others for this new kind of manufacturing. If the trend continues, spacecraft returning from orbital factories could become an ordinary sight within a decade.
Earth’s industrial revolution took generations. The orbital one could happen much faster, powered by entrepreneurs who see space as the next place to build.
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