I had a rare opportunity to visit Rocket Crafters, a small rocket company located in Cocoa, Florida, just 10 miles from the Kennedy Space Center, that is developing and testing what is known as ‘hybrid rocket engines’. These 3D printed engines are born in Colorado from a custom-made printer because none exist on the market that’s large enough to print these rocket engines that DARPA contracts them to build, with a $600,000 investment.
Press gathered inside Rocket Crafters control room to speak to the team. (Tom Cross)
After the hybrid fuel grains are printed, they’re shipped to Rocket Crafters in Florida where they are further processed by wrapping them in carbon for additional strengthening and then test fired. The company is testing three engines per week at an industrial location in the city of Cocoa. The only requirement the City has for testing these engines is to keep the noise level below a certain decibel, over concerns of disruption to neighboring residential.
Multiple small unwrapped 10-second burning test-engines on a shelf for future testing. (Tom Cross)
The engines, called fuel grains, are tubes made of ABS plastic, the same material LEGO are made of. The fuel grains are so safe, in fact, they can fly with them on airplanes as a carry on. They are specially shaped for the use of burning smoothly as a rocket engine, something only a printing process could form, which is a patented invention by Ronald Jones. The fuel grain needs an oxidizer in order to burn through, and without that, there’s really not much you can do with them because they’re just a tube of plastic.
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- Rocket Crafters engine is a Patented printing process. (Tom Cross)
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- A look inside the fuel grain. (Tom Cross)
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- A fuel grain in the process of carbon-wrapping. (Tom Cross)
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- Inventor, Ronald Jones. (Tom Cross)
When I arrived at Rocket Crafters the day of the test, I asked if I could set up my launchpad cameras to capture the flame of the engine during the test fire. Due to safety concerns over their oxidizer tanks that were already full, the team kindly advised against doing so. The oxidizer is nitrous oxide, also known as laughing gas at the dentist. Needless to say, it probably would have been incredibly funny had it sprung a leak while I was setting up my camera. The whole test stand sits on the back of a flat-bed trailer that’s ratcheted down to the concrete and protected by mobile steel walls on three sides.
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- Rocket Crafters engine test stand. (Tom Cross)
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- Technicians take readings from the gauges on the test stand. (Tom Cross)
CEO Sid Gutierrez, a former Space Shuttle Pilot, and Shuttle Commander touted the safety aspects of their rocket engine. “What you won’t see are cryogenics, bi-propellant liquid fuel engines, no signs saying explosives,” he said during the video conference. Rocket Crafters are carving their slice into the new wave of affordable launches for small-scale cube satellites and have grand plans of creating their own rocket called Intrepid consisting of multiple hybrid rocket engines burning simultaneously.
They brought me into their testing facility to showcase their fuel grains, carbon wrapping process, and most importantly a 10-second test fire of one of the engines from inside their control room. During the test, the engine could be heard through multiple block walls and doors as if it was just 10 feet away. The building didn’t shake, the sound was intense, though. The video on the screen doesn’t do it justice. The whole experience was pretty awesome.
Rocket Crafters still has a bit of work to do trying and testing new components before they’re ready to launch but they’ve already begun making prototypes of their full-scale engine. The day I was there, engineers were testing a nozzle made of a material they hadn’t tried before. “You don’t see many 15-person companies developing a rocket,” said Robert Fabian, SVP of Propulsion.
SVP of Propulsion explains the components inside the test-tube. (Tom Cross)
I’m no rocket expert, I’d be a rocket scientist instead of a photographer if so, but I learn a lot by doing this. I think this particular hybrid rocket engine would be perfectly suited for a prosumer market of amateur rocketry, especially considering how safe they are and non-toxic to the environment. The few amateur rocket enthusiasts I’ve asked about hybrid engines said they’d be great to have after they fix the flaws of hybrid engines.
Here’s a video of one of their engine tests:
https://youtu.be/BVPxbdkC1y8
Tom Cross
Lifestyle
Tesla Cybertruck targets job site crews with new Tailgate Utility Track and Bed Gear Box accessory
Tesla launched a $350 tailgate track and a $985 lockable Bed Gear Box for Cybertruck.
Tesla’s Cybertruck team added two more items to the Tesla Shop, targeting job site crews and owners who use the truck bed for actual work rather than just showing it off. The official Cybertruck X account posted the Tailgate Utility Track and the Bed Gear Box within minutes of each other, part of a five item batch that also included a reflective jacket, a spray paint hat and an updated reflective tee.
The Tailgate Utility Track runs $350 and turns the folded down tailgate into another mounting surface. It’s a single aluminum track with a T-slot for sliding accessories and two L-track attachment points, plus two load stops included in the box. The pitch is straightforward: strap down oversized cargo, like lumber or a cooler, that hangs off the back of the bed without it sliding out mid-drive. It bolts onto the existing tailgate and works on every Cybertruck trim.
Tailgate Utility Trackhttps://t.co/PCAYXlFBvS pic.twitter.com/sCV2NVxf1W
— Cybertruck (@cybertruck) September 3, 2026
The Bed Gear Box costs $985 and is a different kind of accessory. It’s a lockable aluminum storage box, 55.78 inches long, 19.8 inches wide and 7.79 inches tall, that mounts to the bed’s L-track rails and comes with two internal bins for smaller items. According to Tesla, at just over 57 pounds empty, it’s meant to stay in place rather than come in and out with each trip, giving owners a factory-fit alternative to loose totes for tools, recovery gear or emergency supplies. Tesla’s listing notes that Long Range and Dual Motor AWD Cybertrucks need the L-Tracks accessory installed separately before the Gear Box will mount, since L-tracks come standard only on certain configurations.
Tesla Cybertruck bed gear box accessory
Both accessories lean on the idea Tesla has been building toward since Elon Musk first described the Cybertruck’s third-party attachment strategy at the 2023 shareholder meeting, when he said the truck would ship with mounting points so outside companies, and Tesla itself, could keep adding gear without redesigning the bed. That’s the same L-track backbone underneath the tailgate shield and jumpseats Tesla launched last year, and the off-road armor package that arrived through the same X account in 2025.
Owners looking to round out the rest of the L-track ecosystem, cargo dividers, MOLLE panels, bed racks and similar gear, can find a wider range of options through our Cybertruck accessories collection.
Elon Musk
Elon Musk says he knows how to save Earth for a billion years
Elon Musk says sentient AI satellites launched from the Moon could keep Earth livable forever.
Elon Musk spent part of his weekend describing a plan to keep the planet livable for roughly a billion years, and it starts with satellites that can think for themselves.
In a post on X, Musk argued that swapping fossil fuels for solar and wind power will not be enough to protect humanity from what he called extremely severe extinction events, the kind that occur roughly every 100 million years. His fix is what he called sentient satellites, or solar-powered satellites, controlled by AI, that would sit in a fixed spot between Earth and the Sun after being launched off the Moon using a giant electromagnetic catapult instead of rockets.
The satellites’ onboard AI would make continuous, small adjustments rather than waiting on human instructions. The mass driver is Musk’s proposed way of getting the raw material there cheaply by using an electromagnetic launch track built on the Moon, where lower gravity and no atmosphere make it far easier to fling cargo into space than it is from Earth.
But we do need to act much faster than that if people still want to live where the beach is today. We have about 50 years or so to take action, which should be more than enough time for the space satellites to solve any heating problems. https://t.co/xhrVQALwQw
— Elon Musk (@elonmusk) August 30, 2026
Musk shared a Grok generated estimate suggesting roughly 5 percent of Florida’s land, or about 1.68 million acres, could face regular flooding by 2070 under a high sea level rise scenario, and said humanity has about 50 years to act before coastal living looks very different than it does today.
This is not the first time Musk has floated the idea. He raised a similar concept in November, describing a solar powered AI satellite constellation that could make tiny adjustments to incoming sunlight to fine tune Earth’s temperature. Musk has also tied planetary risk to his broader vision at SpaceX, where his compensation package is explicitly linked to establishing a self-sustaining Mars colony, one he has described as an insurance policy against the kind of extinction event he referenced this weekend, and where he has said humans could set foot within five to seven years.
A former Vancouver police sergeant with ALS accounts his journey to become a patient for Elon Musk’s Neuralink wireless brain-computer interface technology.
“I’m texting you from my brain right now.” That was the first message Lee Marten sent after waking up from Neuralink surgery, five hours and one migraine after dozens of threads were stitched into his motor cortex.
Marten, a former Vancouver police sergeant, is one of the first Canadian ALS patients to receive Neuralink’s N1 brain implant, and the 26th recipient overall. He tells his story in a first-person account published by Maclean’s.
Marten recounts how he was a healthy, athletic Vancouver police sergeant until April 2022 when symptoms of muscle twitching and balance loss, were followed by a bad fall that broke his leg. He would eventually be diagnosed with ALS in early 2025 at the age of 47. ALS, also known as Lou Gehrig’s disease, is a fatal neurodegenerative disease that progressively destroys the motor neurons controlling voluntary muscle movement, eventually taking away a patient’s ability to walk, speak, swallow and breathe. There’s no cure, and most patients live two to five years after diagnosis.
He describes the devastation of the diagnosis and how he began preparing for it while connecting with other young ALS patients through a WhatsApp group called Young Guns. Through that group he learned about a Neuralink clinical trial at Toronto Western Hospital and, after a roughly seven-month vetting process (physical assessments, psychiatric evaluation, a final interview with the Neuralink team), was accepted this past April as the trial’s 26th recipient and the first Canadian ALS patient to get the N1 implant. He recounts the May surgery in detail, including the robotic system that stitched 64 threads into his brain, and describes the app, Link, translating his neural signals into cursor control, which he was using within hours of waking up.
Marten walks through what daily use looks like, including weekly “brain training” exercises, a real-time neural-activity display, charging the implant via a beanie-mounted MagSafe charger, and using the implant for emailing, texting, social media, and gaming via a “Magic Box” that connects it to other devices. He also gives brief context on brain-computer interface history and quite candid about Musk, calling him “divisive” but saying he found him “easy to admire.
The piece closes on a heavier note, with Marten seeking to pursue medical assistance in dying as his symptoms progressed, noting that he’ll be able to communicate his final words to his family through Neuralink rather than facing a silent decline. He expresses hope the data from his case will help future ALS patients, even without a cure in his own lifetime.
Tesla Cybercab launch catches NHTSA’s attention who wants to know more
Tesla Cybercab is coming to Asia this month as US service officially begins
