News
NASA, SpaceX set for historic Friday astronaut launch with reused booster and capsule
Update: NASA and SpaceX have confirmed that they are set for a historic astronaut launch with a reused Falcon booster and Dragon capsule on Friday, April 23rd.
Delayed from April 22nd by weather hundreds to thousands of miles downrange, those sea conditions – appear to have settled down – at least for now – and weather at the launch pad itself is about as good as it gets on the central Florida coast.


An official livestream hosted by NASA and SpaceX will begin around four hours prior to Crew-2’s 5:49 am EDT (09:49 UTC) liftoff. Stay tuned for updates and tune in below around 1:49 am EDT to watch all of the launch proceedings live.
SpaceX’s second operational Dragon astronaut launch and one of the biggest milestones in the history of rocket and spacecraft reuse will have to wait until Friday after bad ‘abort’ weather tripped up an otherwise excellent Thursday launch attempt.
Aside from nature’s boundless chaos, all other elements of SpaceX and NASA’s Crew-2 astronaut launch are in excellent condition and ready for flight – now scheduled no earlier than 5:49 am EDT (09:49 UTC) on Friday, April 23rd.
As previously discussed on Teslarati, both Falcon 9’s first stage and Crew Dragon’s recoverable capsule are flight-proven, making Crew-2 the first time in history that a private company – or anyone, for that matter – has attempted to launch astronauts with a reused liquid rocket booster or flight-proven space capsule, let alone both at the same time.
“In essence, success would mean that SpaceX has unequivocally proven that a private company can develop – nearly from scratch – methods of rocket and spacecraft reusability that are so successful and reliable that perhaps the most risk-averse customer on Earth is willing to place the lives of its astronauts in the hands of those flight-proven spacecraft and rockets. If SpaceX can accomplish that feat with Falcon 9 and Crew Dragon, there is no practical reason to doubt that it can be repeated with Starship – a vehicle that has already piqued NASA’s interest.”
Teslarati.com – 15 April 2021
Thus far, both Falcon booster B1061 and Dragon capsule C206 have sailed through their prelaunch processing, most recently culminating in a flawless static fire test and ‘dry dress’ rehearsal late last week. Since then, NASA and SpaceX have continued to analyze data and inspect hardware but are otherwise simply waiting on the weather. Both on Thursday and Friday, weather at the pad itself (and in the region of the Atlantic where Falcon 9’s first stage will be landing) is about as good as it gets, offering just a 10-20% chance of conditions that could scrub the launch.
Unfortunately, things aren’t quite that easy. Due to the fact that NASA and SpaceX have to ensure that thorough contingency plans are in place in case of a launch failure and Dragon abort, Crew Dragon launches also have to take into account weather conditions and sea states across a ~3200-kilometer (~2000 mi) corridor stretching from the Central Florida coast to Ireland. With such a vast expanse of the ocean in focus, the odds that all possible abort scenarios will result in a safe splashdown and astronaut recovery start to become akin to winning the lottery.

In the case of Crew-2, the weather somewhere along that vast tract of the Atlantic Ocean isn’t behaving, leading NASA and SpaceX to delay the launch from Thursday to Friday. If Friday’s attempt suffers the same fate, orbital mechanics will push the next launch opportunity to Monday, April 26th. As always, SpaceX will stream the launch live. Tune in around four hours before liftoff at SpaceX.com.
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.