News
SpaceX, Firefly Aerospace targeting three rocket launches in two days
Update: As is a common occurrence in spaceflight, two of the three planned missions have been delayed or scrubbed. Firefly’s second Alpha launch has slipped to no earlier than (NET) September 12th after an aborted attempt on the 11th, and SpaceX’s Starlink 4-34 mission was pushed from September 11th to September 13th.
SpaceX and Firefly Aerospace are on track to attempt three orbital launches this weekend as the former continues to relentlessly assemble a constellation of Starlink internet satellites and the latter works to secure its first success.
On the heels of 40 successful Falcon 9 launches this year, SpaceX is a few days away from two more Starlink missions that will likely leave the company with more than 3000 working satellites in orbit.
Founded in 2017, 15 years after SpaceX, Firefly Aerospace is almost entirely focused on one near-term goal: the first successful launch of its Alpha rocket.
Firefly’s Alpha rocket lifted off for the first time on September 2nd, 2021. Just moments after launch, a faulty cable caused one of the Alpha first stage’s four Reaver engines to shut down, immediately dooming the attempt. The rocket inexplicably persevered, though, and managed more than two minutes of powered flight before it lost control, became a range safety risk, and was terminated.
More than a year later, Firefly believes it has solved the problems that doomed Alpha Flight 1 and is on the cusp of the rocket’s second launch attempt, which has been scheduled no earlier than (NET) 3pm PST (22:00 UTC) on Sunday, September 11th.
Recently, the second fully stacked Alpha rocket completed a wet dress rehearsal and static fire while installed on Firefly’s Vandenberg Space Force Base (VSFB) SLC-2W pad, confirming its readiness for flight. Measuring 1.8 meters (6 ft) wide and 29.5 meters (~95 ft) tall, Alpha is about half the width and height of SpaceX’s Falcon 9 workhorse, and Firefly estimates that the expendable rocket will be able to launch up to 1.17 tons (~2560 lb) to Low Earth Orbit (LEO).
That’s several times more performance per launch than competitors like Rocket Lab, Astra Space, and Virgin Orbit, but 14 times less than a partially reusable Falcon 9. At $15 million apiece, however, the rocket’s list price will be 4.5 times less than Falcon 9’s, which could be enough to create a niche for customers that want to spend a bit more to send smaller satellites exactly where they want instead of getting dropped off in the general vicinity as a rideshare payload.
Demonstrating an impressive level of transparency, Firefly will offer a public livestream of Alpha’s second flight in full awareness that it could ultimately broadcast a launch failure for the second time in a row. There are very few instances in the history of spaceflight where a new group’s new rocket successfully reached orbit on its first launch, so it’s a credit to the startup to acknowledge the reality that launch failures are a common extension of the development process, rather than something to hide from the public.
SpaceX knows that reality well. Falcon 1, its first rocket, was about half the size of Firefly’s Alpha and suffered three launch failures in two and half years before finally succeeding on its fourth attempt. More than a magnitude larger, Falcon 9 likely benefitted from SpaceX’s Falcon 1 experience and had a much smoother start to life, though it did eventually experience its own share of failures years after its 2010 debut.
12 years later, Falcon 9 is one of the most successful launch vehicles of all time, and has simultaneously pioneered the commercially viable reuse of orbital-class rockets. Currently on a historic pace of one launch every ~6.2 days in 2022, Falcon 9 recently completed its 146th successful launch in a row and 173rd successful launch overall.
Hopefully continuing those trends, Next Spaceflight reports that Falcon 9 is scheduled to launch two more batches of Starlink satellites at 9:10 pm EDT on Saturday, September 10th, and 10:53 pm EDT on Sunday, September 11th. In addition to several dozen Starlink satellites, the first mission – Starlink 4-2 – is expected to carry a relatively large 1.5-ton (~3300 lb) satellite prototype for space-to-phone communications startup AST SpaceMobile. The second mission, known as Starlink 4-34, should be a dedicated launch of another 53 or 54 Starlink satellites.
News
Tesla seen as early winner as Canada reopens door to China-made EVs
Tesla had already prepared for Chinese exports to Canada in 2023 by equipping its Shanghai Gigafactory to produce a Canada-specific version of the Model Y.
Tesla seems poised to be an early beneficiary of Canada’s decision to reopen imports of Chinese-made electric vehicles, following the removal of a 100% tariff that halted shipments last year.
Thanks to Giga Shanghai’s capability to produce Canadian-spec vehicles, it might only be a matter of time before Tesla is able to export vehicles to Canada from China once more.
Under the new U.S.–Canada trade agreement, Canada will allow up to 49,000 vehicles per year to be imported from China at a 6.1% tariff, with the quota potentially rising to 70,000 units within five years, according to Prime Minister Mark Carney.
Half of the initial quota is reserved for vehicles priced under CAD 35,000, a threshold above current Tesla models, though the electric vehicle maker could still benefit from the rule change, as noted in a Reuters report.
Tesla had already prepared for Chinese exports to Canada in 2023 by equipping its Shanghai Gigafactory to produce a Canada-specific version of the Model Y. That year, Tesla began shipping vehicles from Shanghai to Canada, contributing to a sharp 460% year-over-year increase in China-built vehicle imports through Vancouver.
When Ottawa imposed a 100% tariff in 2024, however, Tesla halted those shipments and shifted Canadian supply to its U.S. and Berlin factories. With tariffs now reduced, Tesla could quickly resume China-to-Canada exports.
Beyond manufacturing flexibility, Tesla could also benefit from its established retail presence in Canada. The automaker operates 39 stores across Canada, while Chinese brands like BYD and Nio have yet to enter the Canadian market directly. Tesla’s relatively small lineup, which is comprised of four core models plus the Cybertruck, allows it to move faster on marketing and logistics than competitors with broader portfolios.
Elon Musk
Tesla confirms that work on Dojo 3 has officially resumed
“Now that the AI5 chip design is in good shape, Tesla will restart work on Dojo 3,” Elon Musk wrote in a post on X.
Tesla has restarted work on its Dojo 3 initiative, its in-house AI training supercomputer, now that its AI5 chip design has reached a stable stage.
Tesla CEO Elon Musk confirmed the update in a recent post on X.
Tesla’s Dojo 3 initiative restarted
In a post on X, Musk said that with the AI5 chip design now “in good shape,” Tesla will resume work on Dojo 3. He added that Tesla is hiring engineers interested in working on what he expects will become the highest-volume AI chips in the world.
“Now that the AI5 chip design is in good shape, Tesla will restart work on Dojo3. If you’re interested in working on what will be the highest volume chips in the world, send a note to AI_Chips@Tesla.com with 3 bullet points on the toughest technical problems you’ve solved,” Musk wrote in his post on X.
Musk’s comment followed a series of recent posts outlining Tesla’s broader AI chip roadmap. In another update, he stated that Tesla’s AI4 chip alone would achieve self-driving safety levels well above human drivers, AI5 would make vehicles “almost perfect” while significantly enhancing Optimus, and AI6 would be focused on Optimus and data center applications.
Musk then highlighted that AI7/Dojo 3 will be designed to support space-based AI compute.
Tesla’s AI roadmap
Musk’s latest comments helped resolve some confusion that emerged last year about Project Dojo’s future. At the time, Musk stated on X that Tesla was stepping back from Dojo because it did not make sense to split resources across multiple AI chip architectures.
He suggested that clustering large numbers of Tesla AI5 and AI6 chips for training could effectively serve the same purpose as a dedicated Dojo successor. “In a supercomputer cluster, it would make sense to put many AI5/AI6 chips on a board, whether for inference or training, simply to reduce network cabling complexity & cost by a few orders of magnitude,” Musk wrote at the time.
Musk later reinforced that idea by responding positively to an X post stating that Tesla’s AI6 chip would effectively be the new Dojo. Considering his recent updates on X, however, it appears that Tesla will be using AI7, not AI6, as its dedicated Dojo successor. The CEO did state that Tesla’s AI7, AI8, and AI9 chips will be developed in short, nine-month cycles, so Dojo’s deployment might actually be sooner than expected.
Elon Musk
Elon Musk’s xAI brings 1GW Colossus 2 AI training cluster online
Elon Musk shared his update in a recent post on social media platform X.
xAI has brought its Colossus 2 supercomputer online, making it the first gigawatt-scale AI training cluster in the world, and it’s about to get even bigger in a few months.
Elon Musk shared his update in a recent post on social media platform X.
Colossus 2 goes live
The Colossus 2 supercomputer, together with its predecessor, Colossus 1, are used by xAI to primarily train and refine the company’s Grok large language model. In a post on X, Musk stated that Colossus 2 is already operational, making it the first gigawatt training cluster in the world.
But what’s even more remarkable is that it would be upgraded to 1.5 GW of power in April. Even in its current iteration, however, the Colossus 2 supercomputer already exceeds the peak demand of San Francisco.
Commentary from users of the social media platform highlighted the speed of execution behind the project. Colossus 1 went from site preparation to full operation in 122 days, while Colossus 2 went live by crossing the 1-GW barrier and is targeting a total capacity of roughly 2 GW. This far exceeds the speed of xAI’s primary rivals.
Funding fuels rapid expansion
xAI’s Colossus 2 launch follows xAI’s recently closed, upsized $20 billion Series E funding round, which exceeded its initial $15 billion target. The company said the capital will be used to accelerate infrastructure scaling and AI product development.
The round attracted a broad group of investors, including Valor Equity Partners, Stepstone Group, Fidelity Management & Research Company, Qatar Investment Authority, MGX, and Baron Capital Group. Strategic partners NVIDIA and Cisco also continued their support, helping xAI build what it describes as the world’s largest GPU clusters.
xAI said the funding will accelerate its infrastructure buildout, enable rapid deployment of AI products to billions of users, and support research tied to its mission of understanding the universe. The company noted that its Colossus 1 and 2 systems now represent more than one million H100 GPU equivalents, alongside recent releases including the Grok 4 series, Grok Voice, and Grok Imagine. Training is also already underway for its next flagship model, Grok 5.
Tesla seen as early winner as Canada reopens door to China-made EVs
Tesla confirms that work on Dojo 3 has officially resumed
