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SpaceX’s Starship rocket sails through first “flight-like” fueling test
SpaceX’s fully-assembled Starship rocket appears to have sailed through a major wet dress rehearsal test on the first attempt.
With the completion of that test, the next-generation SpaceX rocket has taken a big step toward its first orbital launch attempt. Starship measures around 120 meters (~394 ft) tall and 9 meters (~30 ft) wide, making it the largest rocket ever assembled. It’s designed to launch more than 100 metric tons (~220,000 lb) to low Earth orbit (LEO) in a fully-reusable configuration. At liftoff, Starship’s 33 Raptor engines will produce up to 7590 tons (16.7M lbf) of thrust, making it more powerful than any rocket in history by a large margin.
And on Monday, January 23rd, Starship likely became the heaviest rocket ever after SpaceX fully loaded the vehicle with propellant. Surprising most viewers, SpaceX also appeared to complete the complex test associated with that milestone without running into any major issues.
The update that's rolling out to the fleet makes full use of the front and rear steering travel to minimize turning circle. In this case a reduction of 1.6 feet just over the air— Wes (@wmorrill3) April 16, 2024
The apparent success is surprising because it simply hasn’t been SpaceX’s approach of choice while developing Starship. Since SpaceX began assembling Starhopper in an empty Texas field in 2018, the Starship program has been almost exclusively managed to prioritize speed and expect failures. The company almost always preferred to build, test, and learn from minimum-viable-product prototypes as quickly as possible, even if that meant that failures were guaranteed.
Because SpaceX expected failures, it learned from them and always had another prototype ready to carry the torch forward. Starship prototypes rarely completed ground or flight tests on the first try, as SpaceX was simultaneously learning – often catastrophically – how to test and operate those vehicles. The culmination of that failure-as-an-option strategy was a series of seven suborbital Starship tests – two short hops of identical prototypes and five launch and landing attempts of five more advanced prototypes between August 2020 and May 2021. On the fifth attempt, after four failures, a full-scale Starship successfully launched to 12.5 kilometers (~41,000 ft), shut off its engines, fell back to Earth, reignited its engines, flipped around, and landed in one piece.
By all appearances, the campaign was the ultimate corroboration of SpaceX’s development strategy. In the second half of 2022, however, SpaceX decided to dramatically change the Starship program’s approach to risk management and systems engineering. Starship testing has become exceptionally cautious over the last several months, as a result.
From fail-fast to slow-and-steady
There is a small chance SpaceX simply got lucky, but Starship’s first fully-assembled wet dress rehearsal test appears to indicate that that caution has paid off. Combined, both stages of the rocket – Ship 24 and Booster 7 – collectively completed dozens of separate proof tests and static fires since mid-2022. They also made it through several far more limited tests while stacked.
Having cautiously characterized each prototype about as well as it possibly could, SpaceX finally pulled the trigger on January 23rd. After hours of conditioning the Starbase, Texas orbital launch site’s giant tank farm, SpaceX opened the floodgates and loaded Ship 24 and Booster 7 with up to 4860 tons (~10.7M lbs) of cryogenic liquid oxygen and liquid methane propellant in about 90 minutes. Once fully loaded, the combined weight of the rocket and propellant likely exceeded 5000 tons (~11M lbs), making Starship the heaviest rocket in history. The next heaviest rockets ever built, Saturn V and N-1, weighed around 2800 tons (~6.2M lbs) fully loaded.
SpaceX was also able to drain Starship and return its propellant to the pad’s ground storage tanks about four hours after filling the rocket.
“Flight-like” testing
The company later confirmed that the test was a “full flight-like wet dress rehearsal,” as suspected, and noted that data gathered from it would “help verify a full launch countdown sequence, as well as the performance of Starship and the orbital pad for flight-like operations.” Parts of the test visible from unaffiliated webcasts like NASASpaceflight’s seemed to confirm as much. Shortly after Starship was fully loaded, for example, SpaceX activated the orbital launch mount’s fire extinguisher system, seemingly practicing the moments before the rocket would otherwise ignite its engines and take flight.
At no point during the wet dress rehearsal did SpaceX appear to enter any kind of hold or abort, indicating that the rocket’s systems were all working well enough together to smoothly complete it on the first try. The only mildly concerning behavior visible during the multi-hour test came shortly after Starship was topped off. Booster 7 opened one of its methane tank gas vents to relieve pressure and instead appeared to vent liquid methane, producing a flammable cloud thousands of feet long. More likely than not, the Super Heavy was slightly overfilled, and the liquid vent was an intentional response to that error. The cloud of methane thankfully did not find an ignition source, and Starship went on to finish the test as planned.
SpaceX has a lot of work left to prepare Ship 24 and Booster 7 for Starship’s first orbital launch attempt. Booster 7 must still complete one or several more static fires, during which it could become the most powerful rocket ever tested. To reduce risk, SpaceX will likely remove Ship 24 while testing Super Heavy, and reassemble the rocket only if Booster 7 passes its tests. SpaceX also needs to repair the pad after static fire testing and work with the Federal Aviation Administration (FAA) to finalize Starship’s first orbital launch license.
But after many false positives, Starship’s successful completion of a wet dress rehearsal on the first try has confirmed that the rocket’s orbital launch debut is – for the first time – actually close at hand.
Elon Musk
Tesla proves once more that its factories are its best product
Tesla’s factories are the company’s biggest products–literally.
Tesla’s factories are not just the company’s biggest assets. They are also its best product. This is, at least, as per Tesla China’s recent post on social media platform Weibo.
Tesla China’s Weibo post was shared to celebrate the new Model Y’s quick changeover to its revamped version, which is currently being delivered to consumers globally.
Tesla’s Best Product
In its post, Tesla China noted that Gigafactory Shanghai was able to complete its new Model Y production ramp up in just six weeks. This is a new record for Tesla, and it speaks to the company’s intense focus on efficiency. Tesla also highlighted the Cybercab’s production line in its Weibo post, stating that the upcoming vehicle will see “ultra-high levels of automation” when it gets produced.
“The factory is Tesla’s best product—Tesla Shanghai Super Factory completed the new Model Y production capacity ramp-up within 6 weeks, setting a record for the company’s fastest model production speed. In the future, the North American factory is expected to roll out a Tesla self-driving electric Cybercab every 5 seconds to subvert the vehicle production and manufacturing model. Adhering to the first principle of car manufacturing is Tesla’s core advantage that is difficult to copy,” Tesla China wrote in its post.
Tesla’s Factories
Tesla’s factories are among the best in the world. Tesla only operates four vehicle factories for its entire vehicle lineup today, which is quite impressive for a company that has so far sold up to 1.8 million vehicles per year. Tesla is expected to improve its factories’ output with its future vehicles as well, with Elon Musk stating during the company’s Q1 2025 All-Hands Meeting that the Cybercab’s production line will look more like a high-speed consumer electronics line than a car production line. These innovations, Musk noted, should allow Tesla to ramp the Cybercab’s production to 2 million units per year.
Musk highlighted the importance of Tesla’s factories in the first quarter earnings call as well. While discussing the Cybercab’s line, Musk noted that with Tesla, the factory is as much a product as its cars. “The factory is the product as much as the car is the product. So, this really is the first principles approach to manufacturing that will ultimately allow us, I think, to… achieve a cycle time, meaning a unit every five seconds or less, off a single line,” Musk stated.
News
Starlink to launch on United Airlines planes by May 15
Select United Airlines passengers will get free Starlink internet, with 200+ Mbps speeds. Early testers streamed MLB & live news with ease.
Starlink will launch on United Airlines planes by May 15, 2025, providing select passengers with free internet inflight.
Recently, Sean Cudahy from The Points Guy tried out United Airlines’ free Starlink Wi-Fi. The airline invited a few media to try out Starlink Aviation Wi-Fi before its official launch.
According to Cudahy, connecting to Starlink was easy. All he had to do was take out his phone and connect to the Unitedwifi.com network, which took him to a landing page. Once he clicked “get started” on the landing page, it opened the United mobile app on his phone.
The United app verified Cudahy’s status as a MileagePlus member. After that, all he had to do was click on “connect,” and he was all set. Starlink’s speed was reliable and just what passengers would need on a long flight.
“I ran a speed test, and it clocked the Wi-Fi at 217 Mbps of download speed, and 26.8 Mbps of upload speed,” noted Cudahy.
Cudahy added that connection to Starlink Wi-Fi on his other devices, like his tablet, was easier. All he had to do was scan a QR code on his phone from his tablet.
“United certainly isn’t exaggerating on the speed of the service: I was able to simultaneously watch a live news feed about the selection of a new Pope on one device, and stream a live Major League Baseball game on another,” The Points Guy noted in his review of Starlink Aviation.
United Airlines is offering Starlink services for free to MileagePlus members. Based on Cudahy’s experience, it’s best to download the United mobile app before your flight.
United Airlines expects to equip all 300 of its Embraer 175 planes with Starlink by the end of the year. It plans to install 40 regional jets with Starlink equipment every month.
Last month, the Federal Aviation Administration (FAA) approved United Airlines’ Starlink-equipped planes. United plans to roll out Starlink Wi-Fi across all its flights. It is currently working to receive FAA approval to install Starlink equipment on over 16 aircraft models.
News
Ark Invest sees potential in xAI as the world adopts more AI models
Ark’s new stake in xAI bets on Musk’s future plans. Will the newly merged companies deliver the next AI breakthrough?
Ark Invest reinvested in X Corp in Q1 2025 through its Ark Venture Fund, which converted into a position in xAI, Elon Musk’s artificial intelligence company.
In March, xAI acquired X, intertwining the two companies’ futures. The stock merger values xAI at $80 billion and X at $33 billion. After xAI acquired X, Elon Musk noted that the combined company would unlock “immense potential.” Ark Invest believes in Musk’s vision for xAI and X Corp.
“…the deal created a new combined entity called XAI Holdings Corp., a strategic union that integrates xAI’s cutting-edge foundational models with X’s massive user base of over 600 million strong to unlock a platform that blends real-time communication with AI-enhanced discovery, truth-seeking, and personalized knowledge delivery.
“We believe this merger will be a significant catalyst for consumer AI adoption and foundational model monetization,” Ark noted.
Musk is reportedly planning a valuation adjustment for xAI. CNBC’s David Faber noted in April that Musk hinted at a new funding round for his artificial intelligence startup during an investor call.
The merger supports Musk’s vision to transform X into an “everything app,” where people can communicate, make monetary transactions, catch up on news, and more. xAI is already working on providing financial services. It recently partnered with TWG Global and Palantir to integrate AI with financial services.
In addition, XAI Holdings also has X Money, a payment system that could rival Venmo, Zelle, and Apple Pay. X Corp. secured a Visa partnership in January and money-transmitter licenses in 42 states, including California, in September 2024.
X Money faces opposition in New York from Manhattan Democrats Assemblymember Micah Lasher and state Sen. Brad Hoylman-Sigal, who sent a letter Monday to the state’s Department of Financial Services, urging rejection of X Corp.’s money-transmitter license. The lawmakers cited Musk’s leadership as a risk to consumer data and financial infrastructure.
Ark’s investment in xAI underscores confidence in its AI-driven future, amplified by the XAI Holdings merger. As xAI leverages X’s platform to scale AI innovation, Ark’s stake positions it to benefit from a transformative shift in consumer AI and fintech, despite ongoing challenges.
Tesla proves once more that its factories are its best product
Starlink to launch on United Airlines planes by May 15
Ark Invest sees potential in xAI as the world adopts more AI models
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