Starfall – Affordable, routine access to microgravity
117 points by gmays 4 hours ago | 62 comments

syntaxing 3 hours ago
Space datacenters sounds dumb and impractical to me. Manufacturing semi conductor in space is actually a pretty interesting idea. I designed a few PVD, CVD, and IBE machines before. Ion thrusters from NASA are what semi conductors use as their source anyway. I can see the business proposition for processes like MBE that requires -12 pressure. It takes days, if not weeks to pump a chamber to those values.
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reissbaker 2 hours ago
FWIW, given how many places in the U.S. are passing datacenter bans, I'd expect space-based datacenters to make a lot more sense over the coming years just because it'll be illegal to build them anywhere else.
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DrewADesign 50 minutes ago
The world is a very, very large place and I have a hard time imagining space would be an easier place to do anything. Nobody wants to live near petrochemical factories or aluminum smelters, either, but we’ve got lots of petrochemicals and aluminum. SV execs shredded any chance of cheap public cooperation by presenting like cartoonishly evil, patronizing, greedy big corporate bad guys from some shitty legal dramedy. They need to learn from their mistakes, develop some humility, and approach people with a serious financial proposition, like the oil industry in Alaska. That’s not as cheap as it could have been if they didn’t start out acting like scaled-up shady local real estate developers trying to build condos on protected wetlands, but it will absolutely be a lot cheaper than space.
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azan_ 46 minutes ago
> SV execs shredded any chance of cheap public cooperation by presenting like cartoonishly evil, patronizing, greedy big corporate bad guys from some shitty legal dramedy.

Did they though? From what I’ve read the places where they build get lots of money and infrastructure (not only DC-related) from them.

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DrewADesign 16 minutes ago
Lots of places don’t. Some spin yarns describing job creation and huge economic opportunities, which are largely bullshit, in exchange for large tax exemptions. In Alaska, the people get money, directly, not just some institutions. The oil and gas industries are notoriously uncaring about the people near their operations, but they recognized what needed to be done to smoothly operate in Alaska, and they just did it. There’s a lot of fantastic reasons to dislike the oil and gas industries, but that’l is what mature big business looks like.
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nradov 60 minutes ago
I don't support data center bans but even if that happens in the US I'm pretty sure some other countries will welcome them. For AI inference workloads the network latency doesn't matter.
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reaperducer 44 minutes ago
I don't think the entire nation would ban data centers. The problem is that tech companies are building them on cheap land. Which usually means land that has little water and is better used for food or oxygen or things other than a massive one-story building.

Data centers in brownfields and urban environments see near-zero resistance. There are data centers in skyscrapers in the center of most major U.S. cities, and nobody cares.

Stop plowing down the forests, slurping up the aquifers, and digging up the prairies, and people will stop complaining.

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derektank 21 minutes ago
Data centers in urban areas definitely see massive resistance. Seattle straight up banned any new data centers with a capacity over 20 MW, even though water is a non-issue, and we have tons of industrial land in the south of the city.
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dopa42365 41 minutes ago
Nah, they'll just bite the bullet and build the data centers in remote Canada or Finland or somewhere else no one's complaining (ignore Greta as per usual) and tap into the local hydropower resources. Might take a tad longer and cost slightly more money than in [quasi-lawless US state], but other than that, no problem. Aluminium smelters (basically a solid form of electricity export) in Quebec and Siberia have been doing that for decades already (like 20GW private-ish hydropower).
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devilsdata 31 minutes ago
Wish they'd find a good spot in no man's land and do geothermal.
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gmerc 45 minutes ago
It’s still cheaper to build in a completely undeveloped desert with no neighbors and costly utility hookups than space. By orders of magnitude. That gap will never be materially close.

Space datacenters are just SDI2, a convenient bullshit to be able to funnel more money to campaign donors.

As long as there’s space on earth, Space Datacenters can never be economical. It’s rally that simple.

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nonethewiser 50 minutes ago
You aren’t necessarily wrong but thats a dumb reason for space data centers to be good ideas.
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senordevnyc 44 minutes ago
I don't really understand this perspective. The margins for data centers are such that they could pay massive subsidies to state and local governments and put them in the middle of nowhere with BTM power, and almost all that opposition would evaporate overnight. And you'd still come out way ahead of space-based DCs. They're not doing this yet because they don't have to.
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15155 2 hours ago
Is it dumb and impractical when NIMBYs and folks directly opposed to your political agenda want to prevent any and all terrestrial datacenter development?
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bubblemoth 7 minutes ago
Yes, it is still easier to find somewhere else on earth.
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NamlchakKhandro 46 minutes ago
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tagami 43 minutes ago
We've run a dozen missions in LEO aboard the ISS. Any steps to remove the friction to launch and increase the cadence is a good thing. Spending a few weeks in LEO missions like this typically land in the Australian outback

We do education outreach to K-16 learning institutions around the world. There are many things that can be studied in the near absence of gravity. Fluids are a huge area of research (surface tension, sedimentation, etc). We germinate seeds and look for genetic changes, people study brain organoids, artificial retinas, crystals, et al

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areoform 40 minutes ago
Howdy Ted! It has been a while! Hope you're doing well! Glad that you're still at it. SSGL misses you! <3
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areoform 46 minutes ago
So there are a few breakthrough therapeutics that rely on samples crystallized in microgravity. One of them is Keytruda or Pembrolizumab, a PD-1 inihibitor used as a neo-adjuvant in cancer therapy.

Historically, there was an issue with dosing pembrolizumab, as the manufacturing process was creating large uneven crystals that required physicians to process at the clinic to ensure proper dosing, but in microgravity? The crystallization is just gorgeous. absolutely beautiful

Take a look at this image, https://issnationallab.org/wp-content/uploads/2024/05/merck_...

Left hand side are the crystals grown on the ground. Right hand side is 0g.

That change made it possible to turn it into a safe injectable that patients could take at home. And they were able to recreate those conditions on Earth, https://issnationallab.org/iss360/merck-lab-publishes-pembro...

https://pmc.ncbi.nlm.nih.gov/articles/PMC6889310/

This is more of a scientist said at a conference to another scientist kind of story, but apparently, they got some seed crystals from the ISS that are now used on Earth.

https://techconnectworld.com/World2025/a.php?i=602

You can do a lot more than make just seed crystals. It turns out that cells in our body are inside of a 3D environment with forces / tension acting in all directions. When you smoosh these in a lab (very literally) and try to observe how a drug behaves in a model cell / model organ, then it doesn't have the same physical constraints acting on it. BUT in 0g that's different. In 0g, cells behave slightly more similarly to how they behave in vivo and that could be a huge difference maker for drug discovery.

One breakthrough drug alone is worth more to humanity than what the ISS has cost across its lifespan.

https://iafastro.directory/iac/paper/id/89939/abstract-pdf/I...

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czhu12 3 hours ago
Quite a bit of money have been raised on the premise that certain things can be easier to make in space than on earth due to gravity, which creates sedimentation

Semiconductors, pharmaceuticals, solar cell crystals, and artificial organs are on the short list. The International space station actually has done some experiments on this premise with promising results

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desireco42 2 minutes ago
You can hate this man but he is doing things others don't even dream about. He almost makes them look easy.

Looks cool and if they could make chips in space, it will be beyond crazy. It will be over time and way over budget but in the end will be insanely profitable.

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dakial1 3 hours ago
Here is something that I never imagined there was a use case for. Anyone has any idea of the commercial needs for such a device?
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itishappy 3 hours ago
Material science and manufacturing are two that have always seemed interesting to me, particularly monocrystalline stuff like semiconductors, optics, and metallurgy.
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solyin 58 minutes ago
Varda uses the low gravity environment of space to create medicines that work better than when they're made on Earth.
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dopa42365 18 minutes ago
Don't think Varda (or anyone else) has ever sold any space produced drug? It's all very much experimental small scale. Realistically, something has to be super potent and super expensive to even consider it (that rules out anything mainstream).

Not that anything is really produced in space either, more like passively transformed into some crystal form from a liquid state or whatever. Environmental assistance more than anything else.

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vessenes 3 hours ago
There's a lot of fundamental science to be done in space; some forms of crystal are much easier to grow, chemical reactions and biological interactions etc. etc. For reference, it wasn't long ago NASA was trying to figure out if spiders could form webs in space.
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psunavy03 2 hours ago
Spoiler alert: they can.
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kbutler 44 minutes ago
"When gravity is involved, the golden orb spiders will happily build their asymmetrical webs, and sit facing downwards waiting for prey. In space, their webs were more symmetrical, however when there was light, the spiders used it as a reference point and built their webs as if the light was the opposite to 'downwards'."

https://www.sciencealert.com/here-s-what-happens-to-spiders-... (with video)

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antonvs 2 hours ago
This is an old idea, dating back to at least the 1940s. Many experiments have already been done in microgravity environments.

In the 1960s, they used sounding rockets to do experiments on how molten metals solidify in microgravity, with manufacturing applications in mind.

In the 1970s, they ran experiments, also on sounding rockets, on melting and solidifying materials without letting them touch a container: https://ntrs.nasa.gov/citations/19840059952

More recently, many microgravity experiments have been performed on the International Space Station. Experiments were done on protein crystal growth aboard the ISS in 2000, just a couple of years after it was launched. (I think it took some time to get the experimental facilities up and running.)

Another experiment on the

Here’s an assortment of links on the subject, starting with a good overview:

https://www.nasa.gov/missions/station/applications-within-re...

https://issnationallab.org/research-and-science/space-resear...

https://www.nasa.gov/missions/station/the-benefits-of-microg...

https://ntrs.nasa.gov/citations/20200001550

https://ntrs.nasa.gov/citations/20150023126

https://asmedigitalcollection.asme.org/manufacturingscience/...

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Qworg 2 hours ago
I wonder where this leaves Varda? Tough to win when your ride is also your competitor.
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fnordpiglet 39 minutes ago
Yah I’m also interested in the implications here. Varda is an awesome company and I would have hoped they saw a great exit for such great engineering.
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misiti3780 39 minutes ago
was thinking the same thing. they have raised a lot of $ also
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drivebyhooting 3 hours ago
It sounds like a super villain weapon.

If you manufacture there how do you recover it?

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Polizeiposaune 3 hours ago
The Starfall capsule has enough deltaV to deorbit, a heat shield, and parachutes.

So you tell them where to deliver it (anywhere on the planet that its orbit goes over..), they tell you when it will be arriving, and it reenters and lands there.

Article about a recent test (launched on a Falcon 9):

https://www.afrl.af.mil/News/Article-Display/Article/4629122...

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ceejayoz 3 hours ago
> If you manufacture there how do you recover it?

The graphic shows it reentering the atmosphere.

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Bluebird803 3 hours ago
Presumably the same way we have always recovered payloads from space. Heat-shield + parachute. I'm assuming there would be some capability to do a retrograde maneuver so that the re-entey can be done when and where desired, rather than leaving it to the whims of pure drag.
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itishappy 3 hours ago
You're not wrong! It looks that way because it's a reentry vehicle. You put this thing in a low orbit which decays over the course of a few weeks until it eventually falls from space, then you go find it.
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bamboozled 2 hours ago
Doesn't sound dangerous at all.
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Pedro_Ribeiro 2 hours ago
You realize they know how to land these things right? Are you aware?
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cozzyd 2 hours ago
It would be nice if SpaceX published GNSS pseudodistance/carrier phase from all Starlink satellites. It would give excellent realtime tomographic information about the ionosphere...
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anukin 3 hours ago
This is amazing. Especially for biotech. A robot can do biotech in microgravity.
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gustavus 3 hours ago
Here's the thing I might not love Elon or everything he does and there are plenty of things to disagree with him about and I won't comment on him as a person

But I remember watching live when they launched a Tesla into Orbit, was it dumb, was it pointless and potentially wasteful? Sure, but that moment seeing humanity once again reach out to the stars I could feel it deep in my bones the space race was starting again.

Sure have lots of problems down here but the eternally yearning of humanity to extend out our hands to grasp the cosmos, to touch heaven is a pursuit I think highly worthwhile.

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jtari3333 3 hours ago
Elon turning the concept of space into the vanity project of a mentally unstable man child kinda sucks though. Makes it hard to give a shit knowing he is personally profitting from it.
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hackyhacky 3 hours ago
Not just profiting from it, but then reinvesting that money into subverting democracy
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_dark_matter_ 3 hours ago
*attempting to subvert democracy. But he may yet succeed.
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psunavy03 2 hours ago
I dunno, based on yesterday, the ROI on that seems to be kind of shit.
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alexgoodhart 2 hours ago
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batperson 3 hours ago
There's that one photo with a dummy driver in a red tesla and in the background you can see the earth. I think it's one of the best photos ever, part of it is the absurdity of the fact that it exists at all.
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titzer 2 hours ago
He denied it, but it was absolutely a reference to the opening sequence to the cult classic Heavy Metal.
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aliasxneo 3 hours ago
We just need someone who can pass the purity test and then we can all celebrate these things. Until then we're not allowed to feel happy about it.
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bamboozled 2 hours ago
Purity tests, the guy has indirectly killed hundreds of thousands if not millions of kids through the cancellation of US AID and you're calling this a "purity test", maybe go fuck yourself ?
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tohnjitor 2 hours ago
Where have millions of children died because of lack of USAID funds?
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aliasxneo 2 hours ago
Well that's not very kind.
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trismus 2 hours ago
Seig heils do fail my purity test. I think the bar is reasonable and he has spectacularly failed to clear it.
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everyone 2 hours ago
Yes, he turned space from an obscure realm of nerds into a cringe man-baby grifter domain.
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whalesalad 3 hours ago
worlds most expensive colocation rack
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everyone 2 hours ago
Why is it called microgravity and not freefall? Cus afaik you are experiencing almost the same force of gravity as you would on the surface, you are just constantly falling.
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PivoGraph 5 minutes ago
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loefflerlabs 2 hours ago
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angoragoats 3 hours ago
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nonethewiser 52 minutes ago
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vlovich123 42 minutes ago
Space is 12% of their overall revenue for Q3 2026 down from 20% in 2025 due to AI outpacing connectivity and space (connectivity is also more valuable than space). Investing in SpaceX is investing in an AI and ISP company that has a slightly profitable space R&D lab.
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azan_ 45 minutes ago
Bullish*
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senordevnyc 44 minutes ago
lol, you obviously don't have kids if you think that's the kind of stuff they ask you.
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y1n0 27 minutes ago
Maybe their kids are gifted.
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nonethewiser 11 minutes ago
Or perfect little rhetorical devices
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