Tim Belzer – Page 9

HP plans to save millions by laying off thousands, ramping up AI use

AI, AI layoffs, Biz & IT, HP, layoffs / Tim Belzer / November 26, 2025

HP Inc. said that it will lay off 4,000 to 6,000 employees in favor of AI deployments, claiming it will help save $1 billion in annualized gross run rate by the end of its fiscal 2028.

HP expects to complete the layoffs by the end of that fiscal year. The reductions will largely hit product development, internal operations, and customer support, HP CEO Enrique Lores said during an earnings call on Tuesday.

Using AI, HP will “accelerate product innovation, improve customer satisfaction, and boost productivity,” Lores said.

In its fiscal 2025 earnings report released yesterday, HP said:

Structural cost savings represent gross reductions in costs driven by operational efficiency, digital transformation, and portfolio optimization. These initiatives include but are not limited to workforce reductions, platform simplification, programs consolidation and productivity measures undertaken by HP, which HP expects to be sustainable in the longer-term.

AI blamed for tech layoffs

HP’s announcement comes as workers everywhere try to decipher how AI will impact their future job statuses and job opportunities. Some industries, such as customer support, are expected to be more disrupted than others. But we’ve already seen many tech layoffs tied to AI.

Salesforce, for example, announced in October that it had let go of 4,000 customer support employees, with CEO Marc Benioff saying that AI meant “I need less heads.” In September, US senators accused Amazon of blaming its dismissal of “tens of thousands” of employees on the “adoption of generative AI tools” and then replacing the workers with over 10,000 foreign H-1B employees. Last month, Amazon announced it would lay off about 14,000 people to focus on its most promising projects, including generative AI. Last year, Intuit said it would lay off 1,800 people and replace them with AI-focused workers. Klarna and Duolingo have also replaced significant numbers of workers with AI. And in January, Meta announced plans to lay off 5 percent of its workforce as it looks to streamline operations and build its AI business.

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Plex’s crackdown on free remote streaming access starts this week

Plex, Software, streaming, Tech / Tim Belzer / November 25, 2025

Plex has previously emphasized its need to keep up with “rising costs,” which include providing support for many different devices and codecs. It has also said that it needs money to implement new features, including an integration with Common Sense Media, a new “bespoke server management app” for managing server users, and “an open and documented API for server integrations,” including custom metadata agents,” per a March blog post.

In January 2024, TechCrunch reported that Plex was nearing profitability and raised $40 million in funding (Plex raised a $50 million growth equity round in 2021). Theoretically, the new remote access rules can also increase subscription revenue and help Plex’s backers see returns on their investments.

However, Plex’s evolution could isolate long-time users who have relied on Plex as a media server for years and those who aren’t interested in subscriptions, FAST (free ad-supported streaming TV) channels, or renting movies. Plex is unlikely to give up on its streaming business, though. In 2023, Scott Hancock, Plex’s then-VP of marketing, said that Plex had more people using its online streaming service than using its media server features since 2022. For people seeking software packages more squarely focused on media hosting, Plex alternatives, like Jellyfin, increasingly look attractive.

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It’s official: Boeing’s next flight of Starliner will be allowed to carry cargo only

Boeing, dragon, NASA, Space, space.starliner / Tim Belzer / November 24, 2025

The US space agency ended months of speculation about the next flight of Boeing’s Starliner spacecraft, confirming Monday that the vehicle will carry only cargo to the International Space Station.

NASA and Boeing are now targeting no earlier than April 2026 to fly the uncrewed Starliner-1 mission, the space agency said. Launching by next April will require completion of rigorous test, certification, and mission readiness activities, NASA added in a statement.

“NASA and Boeing are continuing to rigorously test the Starliner propulsion system in preparation for two potential flights next year,” said Steve Stich, manager of NASA’s Commercial Crew Program, in a statement.

Reducing crewed missions

NASA also said it has reached an agreement with Boeing to modify the Commercial Crew contract, signed in 2014, that called for six crewed flights to the space station following certification of the spacecraft. Now the plan is to fly Starliner-1 carrying cargo, and then up to three additional missions before the space station is retired.

“This modification allows NASA and Boeing to focus on safely certifying the system in 2026, execute Starliner’s first crew rotation when ready, and align our ongoing flight planning for future Starliner missions based on station’s operational needs through 2030,” Stich said.

SpaceX and Boeing were both awarded contracts in 2014 to develop crewed spacecraft and fly six operational missions to the space station. SpaceX, with its Crew Dragon vehicle, flew a successful crew test flight in mid-2020 and its first operational mission before the end of that year. Most recently, the Crew-11 mission launched in August, with Crew-12 presently scheduled for February 15.

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Rocket Lab chief opens up about Neutron delays, New Glenn’s success, and NASA science

pete beck, rocket lab, Space / Tim Belzer / November 24, 2025

“In the end of the day, NASA has to capture the public’s imagination.”

Peter Beck, founder and chief executive officer of Rocket Lab, during TechCrunch Disrupt in San Francisco on October 28, 2024. Credit: David Paul Morris/Bloomberg via Getty Images

The company that pioneered small launch has had a big year.

Rocket Lab broke its annual launch record with the Electron booster—17 successful missions this year, and counting—and is close to bringing its much larger Neutron rocket to the launch pad.

The company also expanded its in-space business, including playing a key role in supporting the landing of Firefly’s Blue Ghost mission on the Moon and building two small satellites just launched to Mars.

Overall, it has been quite a ride for the company founded nearly two decades ago in New Zealand by Peter Beck. A new book about the company’s origins and aspirations, The Launch of Rocket Lab, tells the story of the company’s rise in words and grand images.

Ars recently spoke with Beck about Rocket Lab’s past, present, and future. This interview has been edited lightly for clarity.

Ars: In reading through the book and considering the history of Rocket Lab, I’m continually amazed that a handful of engineers in the country with no space program, no space heritage, built the world’s second most accomplished commercial launch company. What do you attribute that success to?

Peter Beck: It’s hard to know. But there’s a few elements within Rocket Lab that have always remained steadfast, no matter what we do or how big we get. And I think a lot of space companies have tried to see how much they can get away with. And it turns out, in this industry, you just can’t get away with taking very many shortcuts at all. So I think that’s part of it. The attitude of our organization is like, nothing’s too big, nothing’s too hard. We just make it happen. The team works extremely hard. If you drive past the Rocket Lab car park on a Sunday, it looks just like the SpaceX car park on a Sunday. And, you know, the team is very mission-driven. They’re always fighting for a goal, which I think is important. And then, above anything, I just think we can never outspend Elon (Musk) and Jeff (Bezos). We have to out-hustle. And that’s just the reality. The Rocket Lab hustle comes down to just not accepting no as an answer. If a barrier comes up a lot of space companies, or a lot of companies in general, whether its regulatory or technical, it’s easy to submit to the problem, rather than just continue to attack it.

Ars: Electron keeps going. In fact, you’ve just flown a record 17th mission this year, and you continue to sign large deals. How has Electron survived the era of rideshare missions on the Falcon 9?

Beck: We’ve always had the thesis that there is a need for a dedicated small launch. You can put as many Bandwagons and as many Transporters as you want, and you can reduce the price to unsustainably low levels as long as you want. It doesn’t make any difference to us, because it’s a totally different product. As folks are building out constellations, it’s no use just getting dumped out in one orbit. So a lot of Electrons these days are just building out constellations for folks where they have optimized for a specific altitude and inclination and so forth. And we can hit those every time. And if you amortize the cost of launch over the actual lifetime of that constellation and the service that it can provide, it’s cheap, and it’s something rideshares can never deliver.

Ars: It’s surprising to me that after so many years and so many startups, there really isn’t a viable competitor in Electron’s class anywhere in the world.

Beck: It’s pretty hard to build a small rocket. I call it the pressure transducer equilibrium. A pressure transducer on a little rocket is a meaningful amount of mass. A pressure transducer on Neutron is totally irrelevant. Just throw 10 at them, and who cares? But on Electron, if you throw 10 pressure transducers at a problem, then you know, you’ve added a kilo. That’s a meaningful portion of the lift capacity of the vehicle. And there’s no super-magic store where you can go and buy a pressure transducer that scales with the size of the rocket. So you end up with a bunch of stuff that just doesn’t scale, that contributes meaningful mass to the vehicle. If you look at Electron’s payload performance, it’s really high for the size of that rocket. So that’s really hard to do because in an instance where you would throw 10 pressure transducers at a problem, we can only afford to throw one at Electron, but we still want the same redundancy and the same reliability and all of those kinds of things. So that just drives really, really difficult engineering solutions.

And then from a financial standpoint, it’s got a sticker price of $8.5 million, let’s call it. Your flight safety team doesn’t care if it’s a big rocket or a little rocket. Your range team doesn’t care if they’re opening a 12-inch valve or a 2-inch valve. All those teams just have to become ruthlessly efficient at doing that work. So if you go to a big rocket, you might have a flight safety team of 20 people. You come here, it has to be like three. So you have to find ways of really streamlining all those processes. And every little person and dollar and gram has to be ringed out.

Rocket Lab launches an Electron booster with a previously flown engine on Thursday. Credit: Rocket Lab

Ars: What’s going on with the Electron reuse program? My sense is that you’ve kind of learned what you needed to know and are moving on.

Beck: Yeah, that’s pretty much it. It was a hugely valuable learning tool, but if you look at an Electron recovery, we might recover sort of a million dollars worth of stage one booster. And of course, the more we make, the cheaper they get, because we’re continuing to scale so that it’s ever decreasing that return. Quite frankly, and honestly, it’s just like, do we have reusability and recovery teams working on something that returns a million dollars every time it flies? Or, do we have them working on Neutron, where it’s tens of millions of dollars every time you fly? So it’s just about, you know, directing the resource for the biggest bang for the buck.

Ars: I listened to your recent earnings call where you discussed Neutron’s development and delay into 2026. What are the biggest issues you face in getting Neutron over the finish line?

Beck: It would be actually easier if there was an issue, because then I could just say something blew up, or this is a problem. But there’s no real issues. It’s just that we’re not going to put something on the pad that doesn’t meet kind of the standard that’s made us successful. Say something might pass the qualification test, but if we see something in a strain gauge on the back of the panel, or something that we don’t understand, we just don’t move on. We’re not going to move on unless we understand every little element of what’s going on. Maybe I’m on some kind of spectrum for details, but that’s what’s kept us successful. It’s just a bigger rocket, and it’s got more unique features like hungry hippo (the payload fairing opening mechanism) and giant carbon structures. So, you know, it’s not like anything has shit the bed. It’s just a big machine, and there’s some new stuff, and we want to make sure we don’t lose the magic of what we created. A little bit of time now can save a huge amount of heartbreak later on.

Ars: Toward the end of the book, you say that Rocket Lab is best positioned to compete with SpaceX in medium-lift launch, and break up the Falcon 9 monopoly. What is your sense of the competitive landscape going forward? We just saw a New Glenn launch and land, and that was really impressive—

Beck: Bloody impressive. Jeff (Bezos) laid down a new bar. That was incredible. People forget that he’s been working on it for 22 years, but even so, that was impressive.

Ars: Yes, it’s been a journey for them. Anyway, there’s also Vulcan, but that’s only flown one time this year, so they’ve got a ways to go. Then Stoke and Relativity are working at it. What’s your view of your competition going forward?

Beck: I hate comparing it to aviation, but I call medium-class lifters the Boeing 737 of the industry. Then you got your A380s, which are your Starships and your New Glenns. And then you’ve got your Electrons, which are your private jets. And you know, if you look at the aviation sector, nobody comes in and just brings an airplane in and wipes everybody out, because there’s different needs and different missions. And just like there’s a 737 there’s an A320 and that’s kind of what Neutron is intending to be. We had a tremendous pull from our customers, both government and commercial, for alternatives to what’s out there.

The other thing to remember is, for our own aspirations, we need a high-cadence, reusable, low-cost, multi-ton lift capability. I think I’ve been clear that I think the large space companies of the future are going to be a little bit blurry. Are they a space company, or are they something else? But there’s one thing that is absolutely sure, that if you have multi-ton access to orbit in a reusable, low-cost way, it’s going to be very, very difficult to compete with if you’re someone who doesn’t have that capability. And if you look at our friends at SpaceX, yeah, Starlinks are great satellites and all the rest of it. But what really enabled Starlink was the Falcon 9. Launch is a difficult business. It’s kind of lumpy and deeply complex, but at the end of the day, it is the access to orbit. And, you know, having multi-ton access to orbit is just critical. If you’re thinking that you want to try and build one of the biggest space companies in the world, then you just have to have that.

Ars: Rocket Lab has expressed interest in Mars recently, both the Mars Telecommunications Orbiter and a Mars Sample Return mission. As Jared Isaacman and NASA think about commercial exploration of Mars, what would you tell them about what Rocket Lab could bring to the table?

Beck: I’m a great believer that government should do things for which it makes no sense for commercial entities to do, and commercial should do the things that it makes no sense for governments to do. Consider Mars Sample Return, we looked at that, and the plan was $11 billion and 20 years? It’s just, come on. It was crazy. And I don’t want to take the shine off. It is a deeply technical, deeply difficult mission to do. But it can be done, and it can be done commercially, and it can be done at a fraction of the price. So let industry have at it.

And look, Eric, I love planetary science, right? I love exploring the planets, and I think that if you have a space company that’s capable of doing it, it’s almost your duty for the knowledge of the species to go and do those sorts of things. Now, we’re a publicly traded company, so we have to make margin along the way. We’ve proven we can do that. Look at ESCAPADE. All up, it was like $50 million cost, launched, and on its way to Mars. I mean, that’s the sort of thing we need to be doing, right? That’s great bang for your buck. And you know, as you mentioned, we’re pushing hard on the MTO. The reality is that if you’re going to do anything on Mars, whether it’s scientific or human, you’ve got to have the comms there. It’s just basic infrastructure you’ve got to have there first. It’s all very well to do all the sexy stuff and put some humans in a can and send them off to Mars. That’s great. But everybody expects the communication just to be there, and you’ve got to put the foundations in first. So we think that’s a really important mission, and something that we can do, and something we can contribute to the first humans landing on Mars.

Rocket Lab’s Neutron rocket is shown in this rendering delivering a stack of satellites into orbit. Credit: Rocket Lab

Ars: You mentioned ESCAPADE. How’s your relationship with Jeff Bezos? I heard there was some tension last year because Rocket Lab was being asked to prepare the satellite for launch, even when it was clear New Glenn was not going to make the Mars window.

Beck: I know you want me to say yes, there is, but the honest truth is absolutely zero. I know David (Limp, Blue Origin’s CEO) super well. We’re great friends. Jeff and I were texting backwards and forwards during the launch. There’s just honestly none. And you know that they gave us a great ride. They were bang on the numbers. It was awesome. Yeah, sure, it would have been great to get there early. But it’s a rocket program, right? Nobody can show me a rocket program that turned up exactly on time. And yep, it may have been obvious that it might not have been able to launch on the first (window), but we knew there’s always other ways. Worst-case scenario, we have to go into storage for a little bit. These missions are years and years long. So what’s a little bit longer?

Ars: Speaking of low-cost science missions, I know Isaacman is interested in commercial planetary missions. Lots of $4 billion planetary missions just aren’t sustainable. If NASA commits to commercial development of satellite buses and spacecraft like it did to commercial cargo and crew, what could planetary exploration look like a decade from now?

Beck: I think that’d be tremendously exciting. One of the reasons why we did CAPSTONE was to prove that you can go to the Moon for $10 million. Now, we lost a lot of money on that mission, so that ultimately didn’t prove to be true. But it wasn’t crazy amounts, and we still got there miles cheaper than anybody else could have ever got there. And ESCAPADE, we have good margins on, and it’s just a true success, right? Touch wood to date, like we’ve got a long way to go, but success in the fact that the spacecraft were built, delivered, launched, and commissioned.

This is the thing. Take your billion-dollar mission. How many $50 million missions, or $100 million missions, could you do? Imagine the amount of science you can do. I think part of the reason why the public gets jaded with some of these science missions is because they happen once a decade, and they’ve got billions of dollars of price tags attached to them. It’s kind of transitorily exciting when they happen, but they’re so far apart. In the end of the day, NASA has to capture the public’s imagination, because the public are funding it. So it has to seem relevant, relevant to mum and dad at home. And you know, when mum and dad are home and it’s tough, and then they just hear billions of dollars and, you know, years of overrun and all the rest of it, how can they feel good about that? Whereas, if they can spend much less and deliver it on time and have a constant stream of really interesting missions in science, I think that it’s great for public justification. I think it’s great for planetary science, because obviously you’re iterating on your results, and it’s great for the whole community to just have a string of missions. And also, I think it’s great for US space supremacy to be blasting around the Solar System all the time, rather than just now and again.

Ars: Ok Pete, it’s November 18. How confident should we be in a Neutron launch next year? 50/50?

Beck: Hopefully better than 50/50. That would be a definite fail. We’re taking the time to get it right. I always caveat anything, Eric, that it’s a rocket program, and we’ve got some big tests in front of us. But to date, if you look at the program, it’s been super smooth; like we haven’t exploded tanks, we haven’t exploded engines. We haven’t had any major failure, especially when we’re pushing some new boundaries and some new technology. So I think it’s going really, really smoothly, and as long as it continues to go smoothly, then I think we’re in good shape.

Eric Berger is the senior space editor at Ars Technica, covering everything from astronomy to private space to NASA policy, and author of two books: Liftoff, about the rise of SpaceX; and Reentry, on the development of the Falcon 9 rocket and Dragon. A certified meteorologist, Eric lives in Houston.

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This hacker conference installed a literal antivirus monitoring system

Science, Security, syndication / Tim Belzer / November 22, 2025

Organizers had a way for attendees to track CO₂ levels throughout the venue—even before they arrived.

Hacker conferences—like all conventions—are notorious for giving attendees a parting gift of mystery illness. To combat “con crud,” New Zealand’s premier hacker conference, Kawaiicon, quietly launched a real-time, room-by-room carbon dioxide monitoring system for attendees.

To get the system up and running, event organizers installed DIY CO₂ monitors throughout the Michael Fowler Centre venue before conference doors opened on November 6. Attendees were able to check a public online dashboard for clean air readings for session rooms, kids’ areas, the front desk, and more, all before even showing up. “It’s ALMOST like we are all nerds in a risk-based industry,” the organizers wrote on the convention’s website.

“What they did is fantastic,” Jeff Moss, founder of the Defcon and Black Hat security conferences, told WIRED. “CO₂ is being used as an approximation for so many things, but there are no easy, inexpensive network monitoring solutions available. Kawaiicon building something to do this is the true spirit of hacking.”

Elevated levels of CO₂ lead to reduced cognitive ability and facilitate transmission of airborne viruses, which can linger in poorly ventilated spaces for hours. The more CO₂ in the air, the more virus-friendly the air becomes, making CO₂ data a handy proxy for tracing pathogens. In fact, the Australian Academy of Science described the pollution in indoor air as “someone else’s breath backwash.” Kawaiicon organizers faced running a large infosec event during a measles outbreak, as well as constantly rolling waves of COVID-19, influenza, and RSV. It’s a familiar pain point for conference organizers frustrated by massive gaps in public health—and lack of control over their venue’s clean air standards.

“In general, the Michael Fowler venue has a single HVAC system, and uses Farr 30/30 filters with a rating of MERV-8,” Kawaiicon organizers explained, referencing the filtration choices in the space where the convention was held. MERV-8 is a budget-friendly choice–standard practice for homes. “The hardest part of the whole process is being limited by what the venue offers,” they explained. “The venue is older, which means less tech to control air flow, and an older HVAC system.”

Kawaiicon’s work began one month before the conference. In early October, organizers deployed a small fleet of 13 RGB Matrix Portal Room CO₂ Monitors, an ambient carbon dioxide monitor DIY project adapted from US electronics and kit company Adafruit Industries. The monitors were connected to an Internet-accessible dashboard with live readings, daily highs and lows, and data history that showed attendees in-room CO₂ trends. Kawaiicon tested its CO₂ monitors in collaboration with researchers from the University of Otago’s public health department.

“That’s awesome,” says Adafruit founder and engineer Limor “Ladyada” Fried about the conference’s adaptation of the Matrix Portal project. “The best part is seeing folks pick up new skills and really understand how we measure and monitor air quality in the real world (like at a con during a measles flare-up)! Hackers and makers are able to be self-reliant when it comes to their public-health information needs.” (For the full specs of the Kawaiicon build, you can check out the GitHub repository here.)

The Michael Fowler Centre is a spectacular blend of Scandinavian brutalism and interior woodwork designed to enhance sound and air, including two grand pou—carved Māori totems—next to the main entrance that rise through to the upper foyers. Its cathedral-like acoustics posed a challenge to Kawaiicon’s air-hacking crew, which they solved by placing the RGB monitors in stereo. There were two on each level of the Main Auditorium (four total), two in the Renouf session space on level 1, plus monitors in the daycare and Kuracon (kids’ hacker conference) areas. To top it off, monitors were placed in the Quiet Room, at the Registration Desk, and in the Green Room.

“The things we had to consider were typical health and safety, and effective placement (breathing height, multiple monitors for multiple spaces, not near windows/doors),” a Kawaiicon spokesperson who goes by Sput online told WIRED over email.

“To be honest, it is no different than having to consider other accessibility options (e.g., access to venue, access to talks, access to private space for personal needs),” Sput wrote. “Being a tech-leaning community it is easier for us to get this set up ourselves, or with volunteer help, but definitely not out of reach given how accessible the CO₂ monitor tech is.”

Kawaiicon’s attendees could quickly check the conditions before they arrived and decide how to protect themselves accordingly. At the event, WIRED observed attendees checking CO₂ levels on their phones, masking and unmasking in different conference areas, and watching a display of all room readings on a dashboard at the registration desk.

In each conference session room, small wall-mounted monitors displayed stoplight colors showing immediate conditions: green for safe, orange for risky, and red to show the room had high CO₂ levels, the top level for risk.

“Everyone who occupies the con space we operate have a different risk and threat model, and we want everyone to feel they can experience the con in a way that fits their model,” the organizers wrote on their website. “Considering Covid-19 is still in the community, we wanted to make sure that everyone had all the information they needed to make their own risk assessment on ‘if’ and ‘how’ they attended the con. So this is our threat model and all the controls and zones we have in place.”

Colorful custom-made Kawaiicon posters by New Zealand artist Pepper Raccoon placed throughout the Michael Fowler Centre displayed a QR code, making the CO₂ dashboard a tap away, no matter where they were at the conference.

“We think this is important so folks don’t put themselves at risk having to go directly up to a monitor to see a reading,” Kawaiicon spokesperson Sput told WIRED, “It also helps folks find a space that they can move to if the reading in their space gets too high.”

It’s a DIY solution any conference can put in place: resources, parts lists, and assembly guides are here.

Kawaiicon’s organizers aren’t keen to pretend there were no risks to gathering in groups during ongoing outbreaks. “Masks are encouraged, but not required,” Kawaiicon’s Health and Safety page stated. “Free masks will be available at the con if you need one.” They encouraged attendees to test before coming in, and for complete accessibility for all hackers who wanted to attend, of any ability, they offered a full virtual con stream with no ticket required.

Trying to find out if a venue will have clean or gross recycled air before attending a hacker conference has been a pain point for researchers who can’t afford to get sick at, or after, the next B-Sides, Defcon, or Black Hat. Kawaiicon addresses this headache. But they’re not here for debates about beliefs or anti-science trolling. “We each have our different risk tolerance,” the organizers wrote. “Just leave others to make the call that is best for them. No one needs your snarky commentary.”

This story originally appeared at WIRED.com.

Wired.com is your essential daily guide to what’s next, delivering the most original and complete take you’ll find anywhere on innovation’s impact on technology, science, business and culture.

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Oops. Cryptographers cancel election results after losing decryption key.

Biz & IT, election systems, encryption keys, iacr, international associate for cryptological research, Security / Tim Belzer / November 22, 2025

One of the world’s premier security organizations has canceled the results of its annual leadership election after an official lost an encryption key needed to unlock results stored in a verifiable and privacy-preserving voting system.

The International Association of Cryptologic Research (IACR) said Friday that the votes were submitted and tallied using Helios, an open source voting system that uses peer-reviewed cryptography to cast and count votes in a verifiable, confidential, and privacy-preserving way. Helios encrypts each vote in a way that assures each ballot is secret. Other cryptography used by Helios allows each voter to confirm their ballot was counted fairly.

An “honest but unfortunate human mistake”

Per the association’s bylaws, three members of the election committee act as independent trustees. To prevent two of them from colluding to cook the results, each trustee holds a third of the cryptographic key material needed to decrypt results.

“Unfortunately, one of the three trustees has irretrievably lost their private key, an honest but unfortunate human mistake, and therefore cannot compute their decryption share,” the IACR said. “As a result, Helios is unable to complete the decryption process, and it is technically impossible for us to obtain or verify the final outcome of this election.”

To prevent a similar incident, the IACR will adopt a new mechanism for managing private keys. Instead of requiring all three chunks of private key material, elections will now require only two. Moti Yung, the trustee who was unable to provide his third of the key material, has resigned. He’s being replaced by Michel Abdalla.

The IACR is a nonprofit scientific organization providing research in cryptology and related fields. Cryptology is the science and practice of designing computation and communication systems that remain secure in the presence of adversaries. The associate is holding a new election that started Friday and runs through December 20.

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Rocket Report: SpaceX’s next-gen booster fails; Pegasus will fly again

atlas v, blue origin, china, falcon 9, long march 2f, new glenn, Northrop Grumman, pythom, rocket lab, rocket report, saab, Science, shenzhou, Space, spacex, starship, super heavy, united launch alliance / Tim Belzer / November 22, 2025

With the government shutdown over, the FAA has lifted its daytime launch curfew.

Blue Origin’s New Glenn booster arrives at Port Canaveral, Florida, for the first time Tuesday aboard the “Jacklyn” landing vessel. Credit: Manuel Mazzanti/NurPhoto via Getty Images

Welcome to Edition 8.20 of the Rocket Report! For the second week in a row, Blue Origin dominated the headlines with news about its New Glenn rocket. After a stunning success November 13 with the launch and landing of the second New Glenn rocket, Jeff Bezos’ space company revealed a roadmap this week showing how engineers will supercharge the vehicle with more engines. Meanwhile, in South Texas, SpaceX took a step toward the first flight of the next-generation Starship rocket. There will be no Rocket Report next week due to the Thanksgiving holiday in the United States. We look forward to resuming delivery of all the news in space lift the first week of December.

As always, we welcome reader submissions. If you don’t want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

Northrop’s Pegasus rocket wins a rare contract. A startup named Katalyst Space Technologies won a $30 million contract from NASA in August to build a robotic rescue mission for the agency’s Neil Gehrels Swift Observatory in low-Earth orbit. Swift, in space since 2004, is a unique instrument designed to study gamma-ray bursts, the most powerful explosions in the Universe. The spacecraft lacks a propulsion system and its orbit is subject to atmospheric drag, and NASA says it is “racing against the clock” to boost Swift’s orbit and extend its lifetime before it falls back to Earth. On Wednesday, Katalyst announced it selected Northrop Grumman’s air-launched Pegasus XL rocket to send the rescue craft into orbit next year.

Make this make sense … At first glance, this might seem like a surprise. The Pegasus XL rocket hasn’t flown since 2021 and has launched just once in the last six years. The solid-fueled rocket is carried aloft under the belly of a modified airliner, then released to fire payloads of up to 1,000 pounds (450 kilograms) into low-Earth orbit. It’s an expensive rocket for its size, with Northrop charging more than $25 million per launch, according to the most recent public data available; the satellites best suited to launch on Pegasus will now find much cheaper tickets to orbit on rideshare missions using SpaceX’s Falcon 9 rocket. There are a few reasons none of this mattered much to Katalyst. First, the rescue mission must launch into a very specific low-inclination orbit to rendezvous with the Swift observatory, so it won’t be able to join one of SpaceX’s rideshare missions. Second, Northrop Grumman has parts available for one more Pegasus XL rocket, and the company might have been willing to sell the launch at a discount to clear its inventory and retire the rocket’s expensive-to-maintain L-1011 carrier aircraft. And third, smaller rockets like Rocket Lab’s Electron or Firefly’s Alpha don’t quite have the performance to place Katalyst’s rescue mission into the required orbit. (submitted by gizmo23)

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Ursa Major rakes in more cash. Aerospace and defense startup Ursa Major Technologies landed a $600 million valuation in a new fundraising round, the latest sign that investors are willing to back companies developing new rocket technology, Bloomberg reports. Colorado-based Ursa Major closed its Series E fundraising round with investments from the venture capital firms Eclipse, Woodline Partners, Principia Growth, XN, and Alsop Louie Partners. The company also secured $50 million in debt financing. Ursa Major is best known as a supplier of liquid-fueled rocket engines and solid rocket motors to power a range of commercial and government vehicles.

Hypersonic tailwinds … Ursa Major says it is positioned to provide the US industrial base with propulsion systems faster and more affordably than legacy contractors can supply. “The company will rapidly field its throttleable, storable, liquid-fueled hypersonic and space-based defense solution, as well as scale its solid rocket motor and sustained space mobility manufacturing capacity,” Ursa Major said in a press release. Its customers include BAE Systems, which will use Ursa Major’s solid rocket motors to power tactical military-grade rockets, and Stratolaunch, which uses Ursa Major’s liquid-fueled Hadley engine for its hypersonic Talon-A spaceplane.

Rocket Lab celebrates two launches in 48 hours. Rocket Lab launched a payload for an undisclosed commercial customer Thursday, just hours after the company announced plans for the launch, Space News reports. The launch from Rocket Lab’s primary spaceport in New Zealand used the company’s Electron rocket, but officials released little more information on the mission, other than its nickname: “Follow My Speed.” An artist’s illustration on the mission patch indicated the payload might have been the next in a line of Earth-imaging satellites from the remote sensing company BlackSky, although the firm’s previous satellites have not launched with such secrecy.

Two hemispheres … Thursday’s launch from the Southern Hemisphere came just two days after Rocket Lab’s previous mission lifted off from Wallops Island, Virginia. That flight was a suborbital launch to support a hypersonic technology demonstration for the Defense Innovation Unit and the Missile Defense Agency. All told, Rocket Lab has now launched 18 Electron rockets this year with 100 percent mission success, a company record.

Spanish startup makes a big reveal. The Spanish company PLD Space released photos of a test version of its Miura 5 rocket Thursday, calling it a “decisive step forward in the orbital launcher validation campaign.” The full-scale qualification unit, called QM1, will allow engineers to complete subsystem testing under “real conditions” to ensure the rocket’s reliability before its first mission scheduled for 2026. The first stage of the qualification unit will undergo a full propellant loading test, while the second stage will undergo a destructive test in the United States to validate the rocket’s range safety destruct system. Miura 5 is designed to deliver a little more than a metric ton (2,200 pounds) of payload to low-Earth orbit.

Still a long way to go … “Presenting our first integrated Miura 5 unit is proof that our model works: vertical integration, proprietary infrastructure and a philosophy based on testing, learning, and improving,” said Raúl Torres, CEO and co-founder of PLD Space. The reveal, however, is just the first step in a qualification campaign that takes more than a year for most rocket companies. PLD Space aims to go much faster, with plans to complete a second qualification rocket by the end of December and unveil its first flight rocket in the first quarter of next year. “This unprecedented development cadence in Europe reinforces PLD Space’s position as the company that has developed an orbital launcher in the shortest time–just two years–whilst meeting the highest quality standards,” the company said in a statement. This would be a remarkable achievement, but history suggests PLD Space has a steep climb in the months ahead. (submitted by Leika and EllPeaTea)

Sweden digs deep in pursuit of sovereign launch. In an unsettled world, many nations are eager to develop homegrown rockets to place their own satellites into orbit. These up-and-coming spacefaring nations see it as a strategic imperative to break free from total reliance on space powers like Russia, China, and the United States. Still, some decisions are puzzling. This week, the Swedish aerospace and defense contractor Saab announced a $10 million investment in a company named Pythom. If you’re not familiar with this business, allow me to link back to a 2022 story published by Ars about Pythom’s questionable safety practices. The company has kept quiet since then, until the name surprisingly popped up again in a press release from Saab, a firm with a reputation that seems to be diametrically opposed to that of Pythom.

Just enough … The statement from Saab suggests its $10 million contribution to Pythom will make it the “lead investor” in the company’s recent funding round. Pythom hasn’t said anything more about this funding round, but Saab said the investment will accelerate Pythom’s “development and deployment of its launch systems,” which include an initial rocket capable of putting up to 330 pounds (150 kilograms) of payload into low-Earth orbit. $10 million may be just enough to keep Pythom afloat for a couple more years but is far less than the money Pythom would need to get serious about fielding an orbital launcher. Pythom is headquartered in California, but it has Swedish roots. It was founded by the Swedish married couple Tina and Tom Sjögren. The company has a couple dozen employees, and a handful of them are based in Sweden, according to Pythom’s website. (submitted by Leika and EllPeaTea)

China is about to launch an astronaut lifeboat. China is set to launch an uncrewed Shenzhou spacecraft to the Tiangong space station to provide the Shenzhou 21 astronauts with a means of returning home, Space News reports. The launch of China’s Shenzhou 22 mission is scheduled for Monday night, US time, aboard a Long March 2F rocket. Instead of carrying astronauts, the ship will ferry cargo to the Chinese Tiangong space station. More importantly, it will provide a safe ride home for the three astronauts living and working aboard the orbiting outpost.

How did we get here? … The Shenzhou 20 spacecraft currently docked to the Tiangong station was damaged by a suspected piece of space junk, cracking its window and rendering it unable to meet China’s safety standards for returning astronauts to Earth. The damage discovery occurred just before three outgoing crew members were supposed to ride Shenzhou 20 home earlier this month. Instead, those three astronauts departed the station and returned to Earth on the newer, undamaged Shenzhou 21 spacecraft. That left the other three crew members on Tiangong with only the damaged Shenzhou 20 spacecraft to get them home in the event of an emergency. Shenzhou 22 will replace Shenzhou 20, providing a lifeboat for the rest of the crew’s six-month stay in space. (submitted by EllPeaTea)

Atlas V launches for Viasat. United Launch Alliance launched its Atlas V rocket on November 13 with a satellite for the California-based communications company Viasat, Spaceflight Now reports. The launch came a week after the mission was scrubbed due to a faulty liquid oxygen tank vent valve on the Atlas booster. ULA rolled the rocket back to the Vertical Integration Facility, replaced it with a new valve, and returned the rocket to the pad on November 12. The launch the following day was successful, with the Atlas V’s Centaur upper stage deploying the ViaSat-3 F2 spacecraft into a geosynchronous transfer orbit nearly three-and-a-half hours after liftoff from Cape Canaveral Space Force Station, Florida.

End of an era … This was the final launch of an Atlas V rocket with a payload heading for geosynchronous orbit. These are the kinds of missions the Atlas V was designed for more than 25 years ago, but the market has changed. All of the Atlas V’s remaining 11 missions will target low-Earth orbit carrying broadband satellites for Amazon or Boeing’s Starliner spacecraft heading for the International Space Station. The Atlas V will be retired in the coming years in favor of ULA’s new Vulcan rocket.

SpaceX launches key climate change monitor. SpaceX launched a joint NASA-European environmental research satellite early Monday, the second in an ongoing billion-dollar project to measure long-term changes in sea level, a key indicator of climate change, CBS News reports. The first satellite, known as Sentinel-6 and named in honor of NASA climate researcher Michael Freilich, was launched in November 2020. The latest spacecraft, Sentinel-6B, was launched from California atop a Falcon 9 rocket this week. Both satellites are equipped with a sophisticated cloud-penetrating radar. By timing how long it takes beams to bounce back from the ocean 830 miles (1,336 kilometers) below, the Sentinel-6 satellites can track sea levels to an accuracy of about one inch while also measuring wave height and wind speeds. The project builds on earlier missions dating back to the early 1990s that have provided an uninterrupted stream of sea level data.

FAA restrictions lifted … The Federal Aviation Administration lifted a restriction on commercial space operations this week that limited launches and reentries to the late night and early morning hours, Spaceflight Now reports. The FAA imposed a daytime curfew on commercial launches as it struggled to maintain air traffic control during the recent government shutdown. Those restrictions, which did not affect government missions, were lifted Monday. (submitted by EllPeaTea)

Blue Origin’s New Glenn will grow larger. One week after the successful second launch of its large New Glenn booster, Blue Origin revealed a road map on Thursday for upgrades to the rocket, including a new variant with more main engines and a super-heavy lift capability, Ars reports. These upgrades to the rocket are “designed to increase payload performance and launch cadence, while enhancing reliability,” the company said in an update published on its website. The enhancements will be phased in over time, starting with the third launch of New Glenn, which is likely to occur during the first half of 2026.

No timelines … The most significant part of the update concerned an evolution of New Glenn that will transform the booster into a super-heavy lift launch vehicle. The first stage of this evolved vehicle will have nine BE-4 engines instead of seven, and the upper stage will have four BE-3U engines instead of two. In its update, Blue Origin refers to the new vehicle as 9×4 and the current variant as 7×2, a reference to the number of engines in each stage. “New Glenn 9×4 is designed for a subset of missions requiring additional capacity and performance,” the company said. “The vehicle carries over 70 metric tons to low-Earth orbit, over 14 metric tons direct to geosynchronous orbit, and over 20 metric tons to trans-lunar injection. Additionally, the 9×4 vehicle will feature a larger 8.7-meter fairing.” The company did not specify a timeline for the debut of the 9×4 variant. A spokesperson for the company told Ars, “We aren’t disclosing a specific timeframe today. The iterative design from our current 7×2 vehicle means we can build this rocket quickly.”

Recently landed New Glenn returns to port. Blue Origin welcomed “Never Tell Me the Odds” back to Cape Canaveral Space Force Station, Florida, on Thursday, where the rocket booster launched exactly one week prior, Florida Today reports. The New Glenn’s first stage booster landed on Blue Origin’s offshore recovery barge, which returned it to Port Canaveral on Tuesday with great fanfare. Blue Origin’s founder, Jeff Bezos, rode the barge into port, posing for photos with the rocket and waving to onlookers viewing the spectacle from a nearby public pier. The rocket was lowered horizontally late Wednesday morning, as spectators watched alongside the restaurants and fishing boats at the port.

Through the gates … Officials from Blue Origin guided the 188-foot-long New Glenn booster to the Space Force station Thursday, making Blue Origin the only company besides SpaceX to return a space-flown booster through the gates. Once back at Blue Origin’s hangar, the rocket will undergo inspections and refurbishment for a second flight, perhaps early next year. “I could not be more excited to see the New Glenn launch, and Blue Origin recover that booster and bring it back,” Col. Brian Chatman, commander of Space Launch Delta 45, told Florida Today. “It’s all part of our certification process and campaign to certify more national security space launch providers, launch carriers, to get our most crucial satellites up on orbit.”

Meanwhile, down at Starbase. SpaceX rolled the first of its third-generation Super Heavy boosters out of the factory at Starbase, Texas, this week for a road trip to a nearby test site, according to NASASpaceflight.com. The booster rode SpaceX’s transporter from the factory a few miles down the road to Massey’s Test Site, where technicians prepared the rocket for cryogenic proof testing. However, during the initial phases of testing, the booster failed early on Friday morning.

Tumbling down … At the Starship launch site, ground teams are busy tearing down the launch mount at Pad 1, the departure point for all of SpaceX’s Starships to date. SpaceX will upgrade the pad for its next-generation, more powerful Super Heavy boosters, while Starship V3’s initial flights will take off from Pad 2, a few hundred meters away from Pad 1.

Next three launches

Nov. 22: Falcon 9 | Starlink 6-79 | Cape Canaveral Space Force Station, Florida | 06: 59 UTC

Nov. 23: Falcon 9 | Starlink 11-30 | Vandenberg Space Force Base, California | 08: 00 UTC

Nov. 25: Long March 2F | Shenzhou 22 | Jiuquan Satellite Launch Center, China | 04: 11 UTC

Stephen Clark is a space reporter at Ars Technica, covering private space companies and the world’s space agencies. Stephen writes about the nexus of technology, science, policy, and business on and off the planet.

Rocket Report: SpaceX’s next-gen booster fails; Pegasus will fly again Read More »

Stoke Space goes for broke to solve the only launch problem that “moves the needle”

andy lapsa, cape canaveral, Features, nova rocket, Space, stoke space / Tim Belzer / November 22, 2025

“Does the world really need a 151st rocket company?”

Stoke Space’s full-flow staged combustion is tested in Central Washington in 2024. Credit: Stoke Space

LAUNCH COMPLEX 14, Cape Canaveral, Fla.—The platform atop the hulking steel tower offered a sweeping view of Florida’s rich, sandy coastline and brilliant blue waves beyond. Yet as captivating as the vista might be for an aspiring rocket magnate like Andy Lapsa, it also had to be a little intimidating.

To his right, at Launch Complex 13 next door, a recently returned Falcon 9 booster stood on a landing pad. SpaceX has landed more than 500 large orbital rockets. And next to SpaceX sprawled the launch site operated by Blue Origin. Its massive New Glenn rocket is also reusable, and founder Jeff Bezos has invested tens of billions of dollars into the venture.

Looking to the left, Lapsa saw a graveyard of sorts for commercial startups. Launch Complex 15 was leased to a promising startup, ABL Space, two years ago. After two failed launches, ABL Space pivoted away from commercial launch. Just beyond lies Launch Complex 16, where Relativity Space aims to launch from. The company has already burned through $1.7 billion in its efforts to reach orbit. Had billionaire Eric Schmidt not stepped in earlier this year, Relativity would have gone bankrupt.

Andy Lapsa may be a brainy rocket scientist, but he is not a billionaire. Far from it.

“When you start a company like this, you have no idea how far you’re going to be able to make it, you know?” he admitted.

Lapsa and another aerospace engineer, Tom Feldman, founded Stoke Space a little more than five years ago. Both had worked the better part of a decade at Blue Origin and decided they wanted to make their mark on the industry. It was not an easy choice to start a rocket company at a time when there were dozens of other entrants in the field.

Andy Lapsa speaks at the Space Economy Summit in November 2025. Credit: The Economist Group

“It was a huge question in my head: Does the world really need a 151st rocket company?” he said. “And in order for me to say yes to that question, I had to very systematically go through all the other players, thinking about the economics of launch, about the business plan, about the evolution of these companies over time. It was very non-intuitive to me to start another launch company.”

So why did he do it?

I traveled to Florida in November to answer this question and to see if the world’s 151st rocket company had any chance of success.

Launch Complex 14

It takes a long time to build a launch site. Probably longer than you might think.

Lapsa and Feldman spent much of 2020 working on the basic design of a rocket that would eventually be named Nova and deciding whether they could build a business around it. In December of that year, they closed their seed round of funding, raising $9.1 million. After this, finding somewhere to launch from became a priority.

They zeroed in on Cape Canaveral because it’s where the majority of US launch companies and customers are, as well as the talent to assemble and launch rockets. They learned in 2021 that the US Space Force was planning to lease an old pad, Space Launch Complex 14, to a commercial company. This was not just a good location to launch from; it was truly a historic location—John Glenn launched into orbit from here in 1962 aboard the Friendship 7 spacecraft. It was retired in 1967 and designated a National Historic Landmark.

But in recent years, the Space Force has sought to support the flourishing US commercial space industry, and it has offered Launch Complex 14. After the competition opened in 2021, Stoke Space won the lease a year later. Then began the long and arduous process of conducting an Environmental Assessment. It took nearly two years, and it was not until October 20, 2024, that Stoke was allowed to break ground.

None of the structures on the site were usable, and aside from the historic blockhouse dating to the Mercury program, everything else had to be demolished and cleared before work could begin.

As we walked the large ring encompassing the site, Lapsa explained that all of the tanks and major hardware needed to support a Nova launch were now on site. There is a large launch tower, as well as a launch mount upon which the rocket will be stood up. The company has mostly turned toward integrating all of the ground infrastructure and wiring up the site. A nearby building to assemble rockets and process payloads is well underway.

Lapsa seemed mostly relieved. “A year ago, this was my biggest concern,” he said.

He need not have worried. A few months before the company completed its environmental permitting, a tall, lanky, thickly bearded engineer named Jonathan Lund hired on. A Stanford graduate who got his start with the US Army Corps of Engineers, Lund worked at SpaceX during the second half of the 2010s, helping to lead the reconstruction of one launch pad, the crew tower project at Launch Complex 39A, and a pad at Vandenberg Space Force Base. He also worked on multiple landing sites for the Falcon 9 rocket. Lund arrived to lead the development of Stoke’s site.

This is Lund’s fifth launch pad. Each one presents different challenges. In Florida, for example, the water table lies only a few feet below the ground. But for most rockets, including Nova, a large trench must be dug to allow flames from the rocket engines to be carried away from the vehicle at ignition and liftoff. As we stood in this massive flame diverter, there were a few indications of water seeping in.

Still, the company recently completed a major milestone by testing the water suppression system, which dampens the energy of a rocket at liftoff to protect the launch pad. Essentially, the plume from the rocket’s engines flows downward where it meets a sheet of water, turning it into steam. This creates an insulating barrier of sorts.

Water suppression test at LC-14 complete. ✅ Flowed the diverter and rain birds in a “launch like” scenario. pic.twitter.com/rs1lEloPul

— Stoke Space (@stoke_space) October 21, 2025

The water comes from large pipes running down the flame diverter, each of which has hundreds of holes not unlike a garden sprinkler hose. Lund said the pipes and the frame they rest on were built near where we stood.

“We fabricated these pieces on site, at the north end of the flame trench,” Lund explained. “Then we built this frame in Cocoa Beach and shipped it in four different sections and assembled it on site. Then we set the frame on the ramp, put together this surface (with the pipes), and then Egyptian-style we slide it down the ramp right into position. We used some old-school methods, but simple sometimes works best. Nothing fancy.”

At this point, Lapsa interrupted. “I was pretty nervous,” he said. “The way you’re describing this sounded good on a PowerPoint. But I wasn’t sure it actually would work.”

But it did.

Waiting on Nova

So if the pad is rounding into shape, how’s that rocket coming?

It sounds like Stoke Space is doing the right things. Earlier this year, the company shipped a full-scale version of its second stage to its test site at Moses Lake in central Washington. There, it underwent qualification testing, during which the vehicle is loaded with cryogenic fuels on multiple occasions, pressurized, and put through other exercises. Lapsa said that testing went well.

The company also built a stubby version of its first stage. The tanks and domes had full-size diameters, but the stage was not its full height. That vehicle also underwent qualification testing and passed.

The company has begun building flight hardware for the first Nova rocket. The vehicle’s software is maturing. Work is well underway on the development of an automated flight termination system. “Having a team that’s been through this cycle many times, it’s something we started putting attention on very early,” Lapsa said. “It’s on a good path as well.”

And yet the final, frenetic months leading to a debut launch are crunch time for any rocket company: first assembly of the full vehicle, first time test-firing it all. Things will inevitably go wrong. The question is how bad will the problems be?

For as long as I’ve known Lapsa, he has been cagey about launch dates for Stoke. This is smart because in reality, no one knows. And seasoned industry people (and journalists) know that projected launch dates for new rockets are squishy. The most precise thing Lapsa will say is that Stoke is targeting “next year” for Nova’s debut.

The company has a customer for the first flight. If all goes well, its first mission will sail to the asteroid belt. Asteroid mining startup AstroForge has signed on for Nova 1.

Stoke Space isn’t shooting for the Moon. It’s shooting for something 1 million times farther.

Too good to believe it’s true?

Stoke Space is far from the first company to start with grand ambitions. And when rocket startups think too big, it can be their undoing.

A little more than a decade ago, Firefly Space Systems in Texas based the design of its Alpha rocket on an aerospike engine, a technology that had never been flown to space before. Although this was theoretically a more efficient engine design, it also brought more technical risk and proved a bridge too far. By 2017, the company was bankrupt. When Ukrainian investor Max Polyakov rescued Firefly later that year, he demanded that Alpha have a more conventional rocket engine design.

Around the same time that Firefly struggled with its aerospike engine, another launch company, Relativity Space, announced its intent to 3D-print the entirety of its rockets. The company finally launched its Terran 1 rocket after eight years. But it struggled with additively manufacturing rockets. Relativity was on the brink of bankruptcy before a former Google executive, Eric Schmidt, stepped in to rescue the company financially. Relativity is now focused on a traditionally manufactured rocket, the Terran R.

Stoke Space’s Hopper 2 takes to the skies in September 2023 in Moses Lake, Washington. Credit: Stoke Space

So what to make of Stoke Space, which has an utterly novel design for its second stage? The stage is powered by a ring of 24 thrusters, an engine collectively named Andromeda. Stoke has also eschewed a tile-based heat shield to protect the vehicle during atmospheric reentry in favor of a regeneratively cooled design.

In this, there are echoes of Firefly, Relativity, and other companies with grand plans that had to be abandoned in favor of simpler designs to avoid financial ruin. After all, it’s hard enough to reach orbit with a conventional rocket.

But the company has already done a lot of testing of this design. Its first iteration of Andromeda even completed a hop test back in 2023.

“Andromeda is wildly new,” Lapsa said. “But the question of can it work, in my opinion, is a resounding yes.”

The engineering team had all manner of questions when designing Andromeda several years ago. How will all of those thrusters and their plumbing interact with one another? Will there be feedback? Is the heat shield idea practical?

“Those are the kind of unknowns that we knew we were walking into from an engineering perspective,” Lapsa said. “We knew there should be an answer in there, but we didn’t know exactly what it would be. It’s very hard to model all that stuff in the transient. So you just had to get after it, and do it, and we were able to do that. So can it work? Absolutely yes. Will it work out of the box? That’s a different question.”

First stage, too

Stoke’s ambitions did not stop with the upper stage. Early on, Lapsa, Feldman, and the small engineering team also decided to develop a full-flow staged combustion engine. This, Lapsa acknowledges, was a “risky” decision for the company. But it was a necessary one, he believes.

Full-flow staged combustion engines had been tested before this decade but were never flown. From an engineering standpoint, they are significantly more complex than a traditional staged combustion engine in that the oxidizer and propellant—which began as cryogenic liquids—arrive in the combustion chamber in a fully gaseous state. This interaction between two gases is more efficient and produces less wear and tear on turbines within the engine.

“You want to get the highest efficiency you can without driving the turbine temperature to a place where you have a short lifetime,” Lapsa said. “Full-flow is the right answer for that. If you do anything else, it’s a distraction.”

Stoke Space successfully tests its advanced full-flow staged combustion rocket engine, designed to power the Nova launch vehicle’s first stage. Credit: Stoke Space

It was also massively unproven. When Stoke Space was founded in 2020, no full-flow staged combustion engine had ever gotten close to space. SpaceX was developing the Raptor engine using the technology, but it would not make its first “spaceflight” until the spring of 2023 on the Super Heavy rocket that powers Starship. Multiple Raptors failed shortly after ignition.

But for a company choosing full reusability of its rocket, as SpaceX sought to do with Starship, there ultimately is no choice.

“Anything you build for full and rapid reuse needs to find margin somewhere in the system,” Lapsa said. “And really that’s fuel efficiency. It makes fuel efficiency a very strong, very important driver.”

In June 2024, Stoke Space announced it had just completed a successful hot fire test of its full-flow, staged combustion engine for Nova’s first stage. The propulsion team had, Lapsa said at the time, “worked tirelessly” to reach that point.

Not just another launch company?

Stoke Space got to the party late. After SpaceX’s success with the first Falcon 9 in 2010, a wave of new entrants entered the field over the next decade. They were drawing down billions in venture capital funding, and some were starting to go public at huge valuations as special purpose acquisition companies. But by 2020, the market seemed saturated. The gold rush for new launch companies was nearing the cops-arrive-to-bust-up-the-festivities stage.

Every new company seemed to have its own spin on how to conquer low-Earth orbit.

“There were a lot of other business plans being proposed and tried,” Lapsa said. “There were low-cost, mass-produced disposable rockets. There were rockets under the wings of aircraft. There were rocket engine companies that were going to sell to 150 launch companies. All of those ideas raised big money and deserve to be considered. The question is, which one is the winner in the end?”

And that’s the question he was trying to answer in his own mind. He was in his 30s. He had a family. And he was looking to commit his best years, professionally, to solving a major launch problem.

“What’s the thing that fundamentally moves the needle on what’s out there already today?” he said. “The only thing, in my opinion, is rapid reuse. And once you get it, the economics are so powerful that nothing else matters. That’s the thing I couldn’t get out of my head. That’s the only problem I wanted to work on, and so we started a company in order to work on it.”

Stoke was one of many launch companies five years ago. But in the years since, the field has narrowed considerably. Some promising companies, such as Virgin Orbit and ABL Space, launched a few times and folded. Others never made it to the launch pad. Today, by my count, there are fewer than 10 serious commercial launch companies in the United States, Stoke among them. The capital markets seem convinced. In October, Stoke announced a massive $510 million Series D funding round. That was a lot of money in a challenging time to raise launch firm funding.

So Stoke has the money it needs. It has a team of sharp engineers and capable technicians. It has a launch pad and qualified hardware. That’s all good because this is the point in the journey for a launch startup where things start to get very, very difficult.

Stoke Space goes for broke to solve the only launch problem that “moves the needle” Read More »

Why you don’t want to get tuberculosis on your penis

case report, health, mycobacterium, penis, Tuberculosis / Tim Belzer / November 21, 2025

Miliary tuberculosis (MTB) is a severe form of tuberculosis in which the instigating bacteria— Mycobacterium tuberculosis or potentially a relative that infects cows and deer, Mycobacterium bovis—spread widely through the body and create small lesions. The name “miliary” dates back to 1700, when a physician noted that the specks resembled millet seeds.

While Mycobacterium can spread through the air and are often found in the lungs, the bacteria can strike anywhere in the body. Still, penile tuberculosis is exceedingly rare. In fact, it’s uncommon to have tuberculosis erupt anywhere in the urinary and genital tracts. Among the infections that spring up in the region, penile infections account for less than 1 percent.

But, given the man’s lungs and his immunosuppressed status, the unusual presentation became their leading guess—and tests soon confirmed it. Mycobacterium were identified in the man’s respiratory tract, and penile tissue tested also showed the bacteria, though the testing couldn’t identify what species of Mycobacterium.

Treatment for tuberculosis requires a regimen of several antibiotics and takes months. In the man’s case, they customized his treatment with a 12-month, four-drug regimen that wouldn’t interfere with his transplant.

Still, the penile lesion got worse before it got better. He developed a large necrotic ulceration on the side of his penis, and his foreskin began to “break down.” Surgeons had to mechanically cut out the dead tissue. After 10 months, his infection appeared to have cleared, and his penile lesion had improved.

Unexplained exposure

It remains unclear how the man got the infection. He told doctors he wasn’t aware of coming in contact with any tuberculosis patients and wasn’t in settings where the bacteria normally spread, such as prisons. It’s possible that the bacteria had been lurking in his transplanted kidney.

Why you don’t want to get tuberculosis on your penis Read More »

Science-centric streaming service Curiosity Stream is an AI-licensing firm now

AI, generative ai, streaming, Tech / Tim Belzer / November 21, 2025

We all know streaming services’ usual tricks for making more money: get more subscribers, charge those subscribers more money, and sell ads. But science streaming service Curiosity Stream is taking a new route that could reshape how streaming companies, especially niche options, try to survive.

Discovery Channel founder John Hendricks launched Curiosity Stream in 2015. The streaming service costs $40 per year, and it doesn’t have commercials.

The streaming business has grown to also include the Curiosity Channel TV channel. CuriosityStream Inc. also makes money through original programming and its Curiosity University educational programming. The firm turned its first positive net income in its fiscal Q1 2025, after about a decade of business.

With its focus on science, history, research, and education, Curiosity Stream will always be a smaller player compared to other streaming services. As of March 2023, Curiosity Stream had 23 million subscribers, a paltry user base compared to Netflix’s 301.6 million (as of January 2025).

Still, in an extremely competitive market, Curiosity Stream’s revenue increased 41 percent year over year in its Q3 2025 earnings announced this month. This was largely due to the licensing of Curiosity Stream’s original programming to train large language models (LLMs).

“Looking at our year-to-date numbers, licensing generated $23.4 million through September, which … is already over half of what our subscription business generated for all of 2024,” Phillip Hayden, Curiosity Stream’s CFO, said during a call with investors this month.

Thus far, Curiosity Stream has completed 18 AI-related fulfillments “across video, audio, and code assets” with nine partners, an October announcement said.

The company expects to make more revenue from IP licensing deals with AI companies than it does from subscriptions by 2027, “possibly earlier,” CEO Clint Stinchcomb said during the earnings call.

Science-centric streaming service Curiosity Stream is an AI-licensing firm now Read More »

Return to the year 2000 with classic multiplayer DOS games in your browser

gaming / Tim Belzer / November 21, 2025

Chrono Divide is a fan-made project which aims to recreate the original “Red Alert 2” from the “Command & Conquer” series using web technologies. The result is a game client that runs in your web browser, with no additional plugins or applications installed.

The project initially started out as an experiment and was meant to prove that it was possible to have a fully working, cross-platform RTS game running in a web browser. Now, with a playable version already available, the end-goal is reaching feature parity with the original vanilla “Red Alert 2” engine.

It works with a client-server model (“say goodbye to port forwarding and firewall exceptions”), supports mods, offers both modern and classic mouse control schemes, and works “on any device and operating system, directly from your web browser,” including phones and tablets. You (understandably) have to have a copy of the game files to play, though.

Further, there are leaderboards and a Discord server, plus modern-game-style “seasons” (with no monetization, of course) that feature special rules and map rotations. So there’s a decent-sized community playing Red Alert 2 on the regular in 2025, which is pretty wild.

Chrono Divide joins a handful of similar projects in bringing older multiplayer PC games with modern bells and whistles to web browsers. One example: DOS Zone offers one-click joining of online matches of Doom, Quake 2 and 3, Unreal Tournament, and Half-Life: Deathmatch—again, with a Discord server for an extra community layer.

So if you want to spend your Friday night reliving the TCP/IP and LAN party multiplayer games of the early 2000s, well, there you go. I’ll see you there—I still think Unreal Tournament is the best multiplayer first-person shooter ever made.

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Google tells employees it must double capacity every 6 months to meet AI demand

AI, AI chips, AI compute, AI development tools, AI GPU, AI infrastructure, alphabet, Amin Vahdat, API, Biz & IT, capital expenditures, Cloud Computing, datacenters, generative ai, Google, large language models, machine learning, Sundar Pichai, Tensor Processing Unit, TPU / Tim Belzer / November 21, 2025

While AI bubble talk fills the air these days, with fears of overinvestment that could pop at any time, something of a contradiction is brewing on the ground: Companies like Google and OpenAI can barely build infrastructure fast enough to fill their AI needs.

During an all-hands meeting earlier this month, Google’s AI infrastructure head Amin Vahdat told employees that the company must double its serving capacity every six months to meet demand for artificial intelligence services, reports CNBC. Vahdat, a vice president at Google Cloud, presented slides showing the company needs to scale “the next 1000x in 4-5 years.”

While a thousandfold increase in compute capacity sounds ambitious by itself, Vahdat noted some key constraints: Google needs to be able to deliver this increase in capability, compute, and storage networking “for essentially the same cost and increasingly, the same power, the same energy level,” he told employees during the meeting. “It won’t be easy but through collaboration and co-design, we’re going to get there.”

It’s unclear how much of this “demand” Google mentioned represents organic user interest in AI capabilities versus the company integrating AI features into existing services like Search, Gmail, and Workspace. But whether users are using the features voluntarily or not, Google isn’t the only tech company struggling to keep up with a growing user base of customers using AI services.

Major tech companies are in a race to build out data centers. Google competitor OpenAI is planning to build six massive data centers across the US through its Stargate partnership project with SoftBank and Oracle, committing over $400 billion in the next three years to reach nearly 7 gigawatts of capacity. The company faces similar constraints serving its 800 million weekly ChatGPT users, with even paid subscribers regularly hitting usage limits for features like video synthesis and simulated reasoning models.

“The competition in AI infrastructure is the most critical and also the most expensive part of the AI race,” Vahdat said at the meeting, according to CNBC’s viewing of the presentation. The infrastructure executive explained that Google’s challenge goes beyond simply outspending competitors. “We’re going to spend a lot,” he said, but noted the real objective is building infrastructure that is “more reliable, more performant and more scalable than what’s available anywhere else.”

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Author name: Tim Belzer