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SpaceX wins US Air Force contract for Falcon Heavy launch

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In an unexpected bode of confidence in the nascent vehicle, SpaceX has competed for and won a $130 million US Air Force launch contract for the massive Falcon Heavy rocket. While not planned to occur until September 2020 at the earliest, the most critical aspect of this development is the fact that the USAF has apparently already certified Falcon Heavy for high-value military launches.

The almost knee-jerk certification of Falcon Heavy for USAF launches makes for an extraordinary contrast when compared with the certification of SpaceX’s Falcon 9 workhorse rocket, a tedious political minefield that took more than two years, led SpaceX to (successfully) sue the federal government, and forced the Air Force to critically reexamine its internal processes after they delayed SpaceX’s certification by six or more months. For that particular endeavor, the USAF required SpaceX to complete three successful Falcon 9 launches, while also preventing SpaceX from engaging in launch contract competitions until their launch vehicle was certified in May 2015.

Jump ahead to 2018 and SpaceX appears to have been allowed to compete for this particular mission – known cryptically as AFSPC-52 – before Falcon Heavy had so much as completed an integrated static fire test. The awe-inspiring rocket did, however, complete a nearly-flawless debut launch in February 2018, a mission that required the company’s Falcon upper stage to survive a lengthy (6+ hour) coast in orbit before igniting its Merlin vacuum engine for one final burn. Regardless of the specifics, many of which have likely been kept under wraps, the Air Force must have been quite impressed with the rocket’s debut performance, and Falcon Heavy has now – according to President and COO Gwynne Shotwell – been certified for USAF missions just four months later.

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It’s somewhere between difficult and impossible to accurately compare the different payloads and launches of the Air Force Space Command (AFSPC), but SpaceX’s only competitor ULA was awarded a contract for the launch of two relatively different AFSPC payloads at an average (fixed) cost of $175 million per mission. Those satellites were likely much smaller than AFSPC-52 but they require direct insertion into geostationary orbit (GEO), whereas AFSPC-52 may instead be sent to a geostationary transfer orbit (GTO) before circularizing the orbit under its own power.

Still, SpaceX’s triple-booster Falcon Heavy launch contract will cost the USAF a slim $130m. It’s worth noting that the 2018 AFSPC-8 and -12 contracts awarded to ULA were for the company’s single-booster Atlas 5 rocket, with most of the draw coming from its admittedly advanced, efficient, and extraordinarily reliable Centaur upper stage, tasked with reigniting repeatedly to circularize the orbit of its valuable satellite payloads once in space.

While it requires far less rigor than the Air Force’s more secretive, national security-sensitive satellite launches, SpaceX’s second Falcon Heavy launchthis time with three highly-reusable Block 5 boosters – will also be conducted with the military branch as the primary customer. Known as Space Test Mission-2 (STP-2), Falcon Heavy will be tasked with carrying a stack of dozens of different smallsats to a variety of orbits. Of note, the vast majority of that mission’s payload comes in the form of a 5000-kilogram ballast mass, included because the mission was manifested on Falcon Heavy (instead of the operational Falcon 9) for the sole purpose of facilitating the rocket’s rapid certification for critical Air Force missions.

 

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STP-2 is currently scheduled for no earlier than (NET) November 2018, while the third launch of Falcon Heavy – the commercial Arabsat 6A communications satellite – is tentatively targeted for December, although it’s almost guaranteed to slip into Q1 2019.

Follow us for live updates, peeks behind the scenes, and photos from Teslarati’s East and West coast photographers.

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Eric Ralph Twitter

Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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Nvidia CEO Jensen Huang explains difference between Tesla FSD and Alpamayo

“Tesla’s FSD stack is completely world-class,” the Nvidia CEO said.

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Credit: Grok Imagine

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. 

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“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.”

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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.

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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.

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Credit: xAI/X

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.”

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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. 

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Elon Musk’s xAI closes upsized $20B Series E funding round

xAI announced the investment round in a post on its official website. 

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Credit: xAI

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.”

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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. 

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