News
SpaceX to launch Falcon Heavy rocket 3 times in 6 months after latest payload delay
For at least the second time in 2021, unspecified issues with a US military payload have delayed SpaceX’s next Falcon Heavy launch, this time pushing the mission into next year.
Known as USSF-44 (formerly AFSPC-44), the US Air Force (now Space Force) contracted a SpaceX Falcon Heavy rocket in February 2019 to launch the classified payload for roughly $150M in fiscal year 2021 (no earlier than Q4 2020). Gradually, USSF-44 slipped without explanation to Q2 2021, at which point SpaceX had fully qualified and delivered all three new Falcon Heavy boosters and an expendable upper stage for the mission. After two more slips to July and October 2021, a US military official finally offered the first hint of an explanation for what now amounted to a full year of delays, explaining that USSF-44 had been pushed into Q4 “to accommodate payload readiness.”
Translated from US military doublespeak and euphemism, the manufacturer (likely Lockheed Martin, Northrop Grumman, or Boeing) building USSF-44’s classified payload(s) ran into or create issues that caused at least 3-6 months of delays. Now, per official comments obtained from a Space Force spokesperson by Spaceflight Now, USSF-44 has again been delayed several months “to accommodate payload readiness,” pushing Falcon Heavy’s fourth launch ever from October 2021 to no earlier than (NET) Q1 2022.
USSF-44’s latest delay means that SpaceX is now likely to go a full 30 months between Falcon Heavy flights after completing the rocket’s third and most recent launch in June 2019. The slip to “early 2022” also leaves the company with an extremely ambitious launch manifest in the first half of 2022. Barring one or several significant delays, which now seems like the most plausible outcome, SpaceX has four major Falcon Heavy missions – USSF-44, USSF-52, ViaSat-3, and NASA’s Psyche probe – scheduled to launch set to launch by August, with three of the four scheduled in H1 2022. A fifth mission – USSF-67 – is scheduled to launch in Q4 2022 and likely on another Falcon Heavy rocket, though the US military has yet to specify the Falcon variant.
Further, requiring the use of the same Kennedy Space Center (KSC) LC-39A pad, SpaceX also has at least six Crew and Cargo Dragon launches scheduled in February (Ax-1), April (Crew-4), May (CRS-25), Q3 (Ax-2), September (CRS-26), and October 2022 (Crew-5). In other words, in Dragon and Falcon Heavy missions alone, SpaceX already has 10-11 launches scheduled in 2022 – all of which require the use of Pad 39A. If SpaceX manages to pull that off on top of a myriad of other commercial and Starlink launches scheduled next year, it will be a feat to remember.
Barring additional delays, USSF-44 will be SpaceX’s first direct launch to geostationary orbit (GEO), requiring the Falcon upper stage to survive a multi-hour coast through and inside two radiation belts before reigniting for a circularization burn some 35,800 km (22,300 mi) above Earth’s surface. However, a rideshare payload transferred to SpaceX’s ViaSat-3 communications satellite launch recently revealed that SpaceX also intends to send those payloads directly to GEO in Q2 2022, meaning that another few months could force the company to leapfrog USSF-44.
For now, fans of the most powerful operational rocket in the world will have to wait at least another three months for its next launch.
News
Nvidia CEO Jensen Huang explains difference between Tesla FSD and Alpamayo
“Tesla’s FSD stack is completely world-class,” the Nvidia CEO said.
NVIDIA CEO Jensen Huang has offered high praise for Tesla’s Full Self-Driving (FSD) system during a Q&A at CES 2026, calling it “world-class” and “state-of-the-art” in design, training, and performance.
More importantly, he also shared some insights about the key differences between FSD and Nvidia’s recently announced Alpamayo system.
Jensen Huang’s praise for Tesla FSD
Nvidia made headlines at CES following its announcement of Alpamayo, which uses artificial intelligence to accelerate the development of autonomous driving solutions. Due to its focus on AI, many started speculating that Alpamayo would be a direct rival to FSD. This was somewhat addressed by Elon Musk, who predicted that “they will find that it’s easy to get to 99% and then super hard to solve the long tail of the distribution.”
During his Q&A, Nvidia CEO Jensen Huang was asked about the difference between FSD and Alpamayo. His response was extensive:
“Tesla’s FSD stack is completely world-class. They’ve been working on it for quite some time. It’s world-class not only in the number of miles it’s accumulated, but in the way it’s designed, the way they do training, data collection, curation, synthetic data generation, and all of their simulation technologies.
“Of course, the latest generation is end-to-end Full Self-Driving—meaning it’s one large model trained end to end. And so… Elon’s AD system is, in every way, 100% state-of-the-art. I’m really quite impressed by the technology. I have it, and I drive it in our house, and it works incredibly well,” the Nvidia CEO said.
Nvidia’s platform approach vs Tesla’s integration
Huang also stated that Nvidia’s Alpamayo system was built around a fundamentally different philosophy from Tesla’s. Rather than developing self-driving cars itself, Nvidia supplies the full autonomous technology stack for other companies to use.
“Nvidia doesn’t build self-driving cars. We build the full stack so others can,” Huang said, explaining that Nvidia provides separate systems for training, simulation, and in-vehicle computing, all supported by shared software.
He added that customers can adopt as much or as little of the platform as they need, noting that Nvidia works across the industry, including with Tesla on training systems and companies like Waymo, XPeng, and Nuro on vehicle computing.
“So our system is really quite pervasive because we’re a technology platform provider. That’s the primary difference. There’s no question in our mind that, of the billion cars on the road today, in another 10 years’ time, hundreds of millions of them will have great autonomous capability. This is likely one of the largest, fastest-growing technology industries over the next decade.”
He also emphasized Nvidia’s open approach, saying the company open-sources its models and helps partners train their own systems. “We’re not a self-driving car company. We’re enabling the autonomous industry,” Huang said.
Elon Musk
Elon Musk confirms xAI’s purchase of five 380 MW natural gas turbines
The deal, which was confirmed by Musk on X, highlights xAI’s effort to aggressively scale its operations.
xAI, Elon Musk’s artificial intelligence startup, has purchased five additional 380 MW natural gas turbines from South Korea’s Doosan Enerbility to power its growing supercomputer clusters.
The deal, which was confirmed by Musk on X, highlights xAI’s effort to aggressively scale its operations.
xAI’s turbine deal details
News of xAI’s new turbines was shared on social media platform X, with user @SemiAnalysis_ stating that the turbines were produced by South Korea’s Doosan Enerbility. As noted in an Asian Business Daily report, Doosan Enerbility announced last October that it signed a contract to supply two 380 MW gas turbines for a major U.S. tech company. Doosan later noted in December that it secured an order for three more 380 MW gas turbines.
As per the X user, the gas turbines would power an additional 600,000+ GB200 NVL72 equivalent size cluster. This should make xAI’s facilities among the largest in the world. In a reply, Elon Musk confirmed that xAI did purchase the turbines. “True,” Musk wrote in a post on X.
xAI’s ambitions
Recent reports have indicated that xAI closed an upsized $20 billion Series E funding round, exceeding the initial $15 billion target to fuel rapid infrastructure scaling and AI product development. The funding, as per the AI startup, “will accelerate our world-leading infrastructure buildout, enable the rapid development and deployment of transformative AI products.”
The company also teased the rollout of its upcoming frontier AI model. “Looking ahead, Grok 5 is currently in training, and we are focused on launching innovative new consumer and enterprise products that harness the power of Grok, Colossus, and 𝕏 to transform how we live, work, and play,” xAI wrote in a post on its website.
Elon Musk
Elon Musk’s xAI closes upsized $20B Series E funding round
xAI announced the investment round in a post on its official website.
xAI has closed an upsized $20 billion Series E funding round, exceeding the initial $15 billion target to fuel rapid infrastructure scaling and AI product development.
xAI announced the investment round in a post on its official website.
A $20 billion Series E round
As noted by the artificial intelligence startup in its post, the Series E funding round attracted a diverse group of investors, including Valor Equity Partners, Stepstone Group, Fidelity Management & Research Company, Qatar Investment Authority, MGX, and Baron Capital Group, among others.
Strategic partners NVIDIA and Cisco Investments also continued support for building the world’s largest GPU clusters.
As xAI stated, “This financing will accelerate our world-leading infrastructure buildout, enable the rapid development and deployment of transformative AI products reaching billions of users, and fuel groundbreaking research advancing xAI’s core mission: Understanding the Universe.”
xAI’s core mission
Th Series E funding builds on xAI’s previous rounds, powering Grok advancements and massive compute expansions like the Memphis supercluster. The upsized demand reflects growing recognition of xAI’s potential in frontier AI.
xAI also highlighted several of its breakthroughs in 2025, from the buildout of Colossus I and II, which ended with over 1 million H100 GPU equivalents, and the rollout of the Grok 4 Series, Grok Voice, and Grok Imagine, among others. The company also confirmed that work is already underway to train the flagship large language model’s next iteration, Grok 5.
“Looking ahead, Grok 5 is currently in training, and we are focused on launching innovative new consumer and enterprise products that harness the power of Grok, Colossus, and 𝕏 to transform how we live, work, and play,” xAI wrote.