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SpaceX envisions massive rocket enclosure for military applications

SpaceX has released renders of its proposed Pad 39A 'Mobile Service Tower', meant to enclose Falcon 9 and Falcon Heavy rockets for processing. (SpaceX)

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SpaceX has published the first renders of a massive tower (MST) designed to fully enclose a Falcon Heavy rocket, giving the US military access to certain prized satellite payloads even when the vehicle is vertical at the launch pad.

Stretching some 70 m (230 ft) tall and 12.2 m (40 ft) wide, building a movable tower capable of fully enclosing SpaceX’s Falcon Heavy rockets is no mean feat. Known as a mobile service tower (MST), SpaceX has managed to avoid the need for the expensive, complex, and extremely unwieldy infrastructure for the first decade of Falcon 9 and Falcon Heavy launch operations. Instead, SpaceX has designed its launch vehicles around the concept of horizontal integration, meaning that its Falcon rockets can be entirely integrated and prepared for flight before going vertical for launch. This approach has ensured easy, cheap access to the entire rocket and payload up until the last few days of static fire and launch operations, lowering the cost of launch.

Beyond Russian spaceflight operations, SpaceX, and a handful of other companies around the world, nearly all other major launch providers and space agencies – including the United Launch Alliance (ULA), Arianespace, ISRO (India), and CNSA (China) – rely almost exclusively on vertical integration. With its new Pad 39A mobile tower, SpaceX will soon join that small club, giving it the ability to compete on completely even footing with ULA and others for lucrative military launch contracts.

After 10 years of pure horizontal rocket integration, SpaceX now plans to build a mobile service tower to support a select few US military launches. (SpaceX)
ULA’s Delta IV Heavy rocket mobile service tower (MST). (Tom Cross)

While one only has so much flexibility when designing a mobile skyscraper that needs to survive Florida’s hurricane seasons, SpaceX’s solution is still visually unique. According to the company, the mobile service tower (MST) it plans to build at its Kennedy Space Center (KSC) Launch Complex 39A (Pad 39A) facilities will measure 87m (284 ft) from its wheels to the top of its roof, while the tower’s ‘crawler’ base will be some 36m x 33m (118 ft x 108 ft) wide, a quarter of the area of a US football field.

SpaceX’s mobile service tower (MST) will attempt to match the aesthetics of its recently-upgraded Pad 39A fixed service structure (FSS). (Pauline Acalin)

During launch preparations, SpaceX would integrate its Falcon Heavy and Falcon 9 rockets like usual, joining boosters, side boosters, upper stages, and recovery while still horizontal inside its Pad 39A hangar. The integrated rocket would be installed (still horizontal) on 39A’s transporter/erector (T/E) – the white steel structure seen backing the rocket above – and rolled out to the launch mount, where the T/E is effectively bolted into the ground before lifting the rocket vertical.

SpaceX’s proposed Pad 39A Mobile Service Tower.

Once vertical, SpaceX’s new tower would slowly crawl about 40m (130 ft) to fully encompass a given Falcon Heavy or Falcon 9 rocket. Once safely inside the MST, 11 different levels would give SpaceX and customer technicians access to the vast majority of the rocket. Most importantly, the tower would allow SpaceX technicians to crane certain US military payloads – encapsulated inside a Falcon payload fairing – onto the top of the rocket.

At the end of the day, that’s really the only reason SpaceX needs such a tower – certain customers (the US military and, to a lesser extent, NASA) have certain payloads that they either can’t or won’t tweak to allow for horizontal integration. No schedule for the MST construction has been mentioned yet but knowing SpaceX, it’s safe to say it could be completed sooner than later once environmental impact studies are complete and construction permits have been secured.

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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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Elon Musk and Tesla AI Director share insights after empty driver seat Robotaxi rides

The executives’ unoccupied tests hint at the rapid progress of Tesla’s unsupervised Robotaxi efforts.

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Ashok Elluswamy

Tesla CEO Elon Musk and AI Director Ashok Elluswamy celebrated Christmas Eve by sharing personal experiences with Robotaxi vehicles that had no safety monitor or occupant in the driver’s seat. Musk described the system’s “perfect driving” around Austin, while Elluswamy posted video from the back seat, calling it “an amazing experience.”

The executives’ unoccupied tests hint at the rapid progress of Tesla’s unsupervised Robotaxi efforts.

Elon and Ashok’s firsthand Robotaxi insights

Prior to Musk and the Tesla AI Director’s posts, sightings of unmanned Teslas navigating public roads were widely shared on social media. One such vehicle was spotted in Austin, Texas, which Elon Musk acknowleged by stating that “Testing is underway with no occupants in the car.” 

Based on his Christmas Eve post, Musk seemed to have tested an unmanned Tesla himself. “A Tesla with no safety monitor in the car and me sitting in the passenger seat took me all around Austin on Sunday with perfect driving,” Musk wrote in his post.

Elluswamy responded with a 2-minute video showing himself in the rear of an unmanned Tesla. The video featured the vehicle’s empty front seats, as well as its smooth handling through real-world traffic. He captioned his video with the words, “It’s an amazing experience!”

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Towards Unsupervised operations

During an xAI Hackathon earlier this month, Elon Musk mentioned that Tesla owed be removing Safety Monitors from its Robotaxis in Austin in just three weeks. “Unsupervised is pretty much solved at this point. So there will be Tesla Robotaxis operating in Austin with no one in them. Not even anyone in the passenger seat in about three weeks,” he said. Musk echoed similar estimates at the 2025 Annual Shareholder Meeting and the Q3 2025 earnings call.

Considering the insights that were posted Musk and Elluswamy, it does appear that Tesla is working hard towards operating its Robotaxis with no safety monitors. This is quite impressive considering that the service was launched just earlier this year.

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Starlink passes 9 million active customers just weeks after hitting 8 million

The milestone highlights the accelerating growth of Starlink, which has now been adding over 20,000 new users per day.

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Credit: Starlink/X

SpaceX’s Starlink satellite internet service has continued its rapid global expansion, surpassing 9 million active customers just weeks after crossing the 8 million mark. 

The milestone highlights the accelerating growth of Starlink, which has now been adding over 20,000 new users per day.

9 million customers

In a post on X, SpaceX stated that Starlink now serves over 9 million active users across 155 countries, territories, and markets. The company reached 8 million customers in early November, meaning it added roughly 1 million subscribers in under seven weeks, or about 21,275 new users on average per day. 

“Starlink is connecting more than 9M active customers with high-speed internet across 155 countries, territories, and many other markets,” Starlink wrote in a post on its official X account. SpaceX President Gwynne Shotwell also celebrated the milestone on X. “A huge thank you to all of our customers and congrats to the Starlink team for such an incredible product,” she wrote. 

That growth rate reflects both rising demand for broadband in underserved regions and Starlink’s expanding satellite constellation, which now includes more than 9,000 low-Earth-orbit satellites designed to deliver high-speed, low-latency internet worldwide.

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Starlink’s momentum

Starlink’s momentum has been building up. SpaceX reported 4.6 million Starlink customers in December 2024, followed by 7 million by August 2025, and 8 million customers in November. Independent data also suggests Starlink usage is rising sharply, with Cloudflare reporting that global web traffic from Starlink users more than doubled in 2025, as noted in an Insider report.

Starlink’s momentum is increasingly tied to SpaceX’s broader financial outlook. Elon Musk has said the satellite network is “by far” the company’s largest revenue driver, and reports suggest SpaceX may be positioning itself for an initial public offering as soon as next year, with valuations estimated as high as $1.5 trillion. Musk has also suggested in the past that Starlink could have its own IPO in the future. 

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NVIDIA Director of Robotics: Tesla FSD v14 is the first AI to pass the “Physical Turing Test”

After testing FSD v14, Fan stated that his experience with FSD felt magical at first, but it soon started to feel like a routine.

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Credit: Grok Imagine

NVIDIA Director of Robotics Jim Fan has praised Tesla’s Full Self-Driving (Supervised) v14 as the first AI to pass what he described as a “Physical Turing Test.”

After testing FSD v14, Fan stated that his experience with FSD felt magical at first, but it soon started to feel like a routine. And just like smartphones today, removing it now would “actively hurt.”

Jim Fan’s hands-on FSD v14 impressions

Fan, a leading researcher in embodied AI who is currently solving Physical AI at NVIDIA and spearheading the company’s Project GR00T initiative, noted that he actually was late to the Tesla game. He was, however, one of the first to try out FSD v14

“I was very late to own a Tesla but among the earliest to try out FSD v14. It’s perhaps the first time I experience an AI that passes the Physical Turing Test: after a long day at work, you press a button, lay back, and couldn’t tell if a neural net or a human drove you home,” Fan wrote in a post on X. 

Fan added: “Despite knowing exactly how robot learning works, I still find it magical watching the steering wheel turn by itself. First it feels surreal, next it becomes routine. Then, like the smartphone, taking it away actively hurts. This is how humanity gets rewired and glued to god-like technologies.”

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The Physical Turing Test

The original Turing Test was conceived by Alan Turing in 1950, and it was aimed at determining if a machine could exhibit behavior that is equivalent to or indistinguishable from a human. By focusing on text-based conversations, the original Turing Test set a high bar for natural language processing and machine learning. 

This test has been passed by today’s large language models. However, the capability to converse in a humanlike manner is a completely different challenge from performing real-world problem-solving or physical interactions. Thus, Fan introduced the Physical Turing Test, which challenges AI systems to demonstrate intelligence through physical actions.

Based on Fan’s comments, Tesla has demonstrated these intelligent physical actions with FSD v14. Elon Musk agreed with the NVIDIA executive, stating in a post on X that with FSD v14, “you can sense the sentience maturing.” Musk also praised Tesla AI, calling it the best “real-world AI” today.

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