News
SpaceX moving fast on Mars rocket development, BFR tent spied with more tooling
Photos taken by Teslarati photographer Pauline Acalin have confirmed that SpaceX’s massive Mars rocket fabrication tooling has been hiding in plain sight at the company’s Port of San Pedro tent facility.
Spotted inside the temporary structure thanks to open flaps and a human desire for a breeze amidst the warm Los Angeles springtime, the main cylindrical component is truly vast – large enough that the eye almost glazes over it at first glance. Dwarfing the humans clambering about it, very rough estimates using knowledge of the tent’s reported area (20,000 square feet) and size comparisons with machinery blueprints suggest a diameter of around 8-10 meters (26-36 feet), loosely conforming to the expected 9m diameter of BFR, as of CEO Elon Musk’s IAC 2017 update. Recently, however, President Gwynne Shotwell showed off an updated Mars rocket video at TED2018 that led to Musk hinting that BFR may have grown slightly since then.

SpaceX’s massive BFR manufacturing tool peeked out from the company’s Port-side tent facility. (Pauline Acalin)
- SpaceX’s BFR tent and mandrel, caught on April 14th. (Pauline Acalin)
- Like, really big. (Pauline Acalin)
The massive cylindrical structure teased by Musk earlier this month is most likely a mandrel, a tool that can be spun on its horizontal axis to weave predetermined structures. In the case of the Mars rocket mandrel, it will likely be used to carefully wind dozens or hundreds of layers of carbon fiber (known as prepreg), interspersed with layers of laminate and various epoxies and resins. It’s also possible, however, that the massive tool is instead a multipurpose mold and autoclave, where the composite layers would be lain on the inside of the cylinder, allowed to set, and eventually sealed inside and heat/pressure treated.
Images of the machinery are fairly ambiguous: they show a structure that could have connection points one might find on an autoclave, as well as what appears to be a thick and well-insulated internal wall. However, the external skin appears to be a relatively thin sheet of metal, which would point more towards a traditional composite mandrel, where certain sheets could be removed or modified as needed to create desired shapes in the composite while it’s being formed, less risky than machining a completed segment.
- Just a casual line of car-sized steel segments hanging around outside the BFR tent. (Pauline Acalin)
- While unclear, these are likely sections of a layup or mold that will be used to form BFR’s more complex composite components. (Pauline Acalin)
- Shown is the forward fuselage of the 787 on a mandrel for composite weaving and layup.(Boeing)
Perhaps even more interesting, a number of massive metal structures were spotted just outside of the tent. While it is unclear what exactly their purpose was, is, or will be, it’s more likely than not that they are components of a carbon composite mold or layup structure meant to deal with fabrication of certain Mars rocket and spaceship components with complex curves, versus the relatively simple cylinders that BFR and BFS are largely comprised of. Still, precedents exist in large aerospace composite manufacturing for the fabrication of structures with complex curves, most notably the nose and front sections of airliners like Boeing’s 787.
Finally, it’s worth noting just how shockingly busy the BFR tent was on both April 13th and 14th, as well as the 8th (the first day Pauline visited the facility). With upwards of 40 cars parked at the tent, it’s blindingly clear that SpaceX is not simply using the tent as a temporary storage location – alongside the arrival of composite fabrication materials (prepreg sheets, epoxy, etc) from Airtech International, SpaceX undeniably intends to begin initial fabrication of the first BFR prototypes in this tent, although they will likely eventually move the activities to the Berth 240 Mars rocket factory. That’s certainly not a sentence I ever expected to write, but it is what it is.
- Airtech supplies arrive at the BFR tent on April 14. Airtech is a composites supplier with a branch located just miles away from Port of San Pedro. (Pauline Acalin)
- Lots of cars at the BFR tent. This also provides a sense of scale for the tent’s absolutely massive access flaps. (Pauline Acalin)
- April 2018. (Pauline Acalin)
SpaceX’s giant, temporary tent currently housing the company’s BFR/BFS fabrication tooling while their permanent facility awaits construction a couple miles away. #SpaceX #BFR pic.twitter.com/a8Tj6QLmUz
— Pauline Acalin (@w00ki33) April 15, 2018
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Elon Musk
Elon Musk and SpaceX shrugs off the trading day Wall Street feared most
SpaceX stock did the opposite of what most of Wall Street expected this week, when the day designed to be its most dangerous turned into a rally, and the rally kept going.
Thursday marked the first major lockup expiration since SpaceX’s June IPO, making roughly 911.5 million insider held shares eligible to trade for the first time, more than doubling the company’s public float. Analysts and short sellers had spent weeks bracing for a flood of selling, especially after the stock fell 13 percent following its first earnings report as a public company on Tuesday. Instead, shares rose 6.1 percent Thursday to close at $114.92, and by Friday they were trading near $129, up more than another 12 percent on the day.
SpaceX shorts get warned by Musk ally, echoing Tesla’s early struggles
The setup made the outcome notable. Short interest had climbed to roughly 34 percent of the float heading into earnings, among the highest of any large cap stock, with about 95 percent of available shares to borrow already on loan. CEO Elon Musk warned short sellers twice in the weeks before the lockup, writing on X that “the survival probability of firms who maintain a significant short position in SpaceX over time is very low,” then following up on the morning of earnings with “I try to warn them, but they just double down.”
When the newly unlocked shares hit the market and the selloff never showed up, some of that short position appears to have started unwinding. TipRanks reported that options activity shifted toward bullish strategies like put selling and risk reversals following the rally, with roughly $600 million in options premium trading Thursday alone. Retail buyers also stepped in during the earnings dip, according to Vanda Research.
The fundamentals behind the stock have not changed much in a week. SpaceX’s revenue nearly doubled year over year to $7.8 billion, with Starlink subscribers doubling to 12 million and the company’s AI segment growing 247 percent. What spooked investors on Tuesday was the spending side. Capital expenditures jumped to more than $18 billion for the quarter, up from $2.8 billion a year earlier, with AI investment alone rising from $749 million to $15.8 billion. Wall Street remains split on whether that spending is building infrastructure SpaceX needs or outrunning what the business can currently support, a debate Teslarati has tracked since shares first came under pressure.
None of that resolves the bigger question hanging over the stock. Thursday’s release was only the first of nine staggered lockup tranches, with roughly $800 billion worth of additional shares scheduled to become eligible through October, and Musk’s own stake stays locked until next June. If this week is any indication, the market is treating that supply as something it can absorb rather than something to fear, at least for now.
News
The Boring Company’s newest Vegas Station has a permit quietly waiting behind it
Sahara Las Vegas opened a new Vegas Loop station, joining an exclusive two resort transit club.
Sahara Las Vegas opened a new Vegas Loop station Thursday, giving The Boring Company’s underground transit system its northernmost stop yet on the Strip. The station sits at Sahara’s Paradise Road entrance, on the southeast corner of Las Vegas Boulevard and Sahara Avenue, and connects riders to the Las Vegas Convention Center, other Strip resorts on the network and, eventually, Harry Reid International Airport.
The addition makes Sahara the second resort, after Fontainebleau opened its own station in January, to get a stop built at street level rather than tucked into the property itself. Sahara now joins Westgate as the only two Strip resorts offering both a Vegas Loop station and a stop on the Las Vegas Monorail, giving guests two separate ways to get around without leaving the property.
The Boring Company just doubled its tunneling power in Nashville
The bigger news buried in Thursday’s announcement is what comes next. Boring Company has already secured its first permit to tunnel north of Sahara Avenue, extending the network beyond where it currently ends, even though permits to push the Loop toward downtown Las Vegas still haven’t been granted. Crews are also working on a two mile dual tunnel line running from Westgate to a planned station at 4744 Paradise Road, just north of Tropicana Avenue, that Las Vegas Convention and Visitors Authority CEO Steve Hill has said the company hopes to open in time for November’s Las Vegas Grand Prix.
Ridership has grown alongside the buildout. The Loop moved roughly 82,000 passengers during CONEXPO in early March, a total the company highlighted on its own X account at the time, and the system has now carried more than 4 million passengers through 11 open stations since it began running in 2021. The airport connector tunnels, meant to give the Loop a direct link to Harry Reid, have slipped past their original first quarter target and remain under construction, with Boring Company director Mike Baier saying that a full opening is still a few months out.
For Sahara, the calculation is straightforward. Convention traffic drives a large share of Loop ridership, and a station at the property’s front door gives conventiongoers one more reason to book rooms on the Strip’s north end instead of closer to the convention center itself.
Elon Musk
Tesla’s mysterious Robovan makes a sneak peek with Optimus in Terafab video
Elon Musk shared a new Terafab video showing Optimus, Robovans, and a stunningly futuristic campus.
Elon Musk posted a new video of Terafab on X Thursday morning, and the most eye-catching details in it were not the building itself, but two products still awaiting production: Optimus and the Robovan.
The concept render, credited to SpaceX, shows Optimus robots working the grounds of the roughly 2.5-mile-long facility planned for the Gibbons Creek site in Grimes County, while a Robovan glides along an elevated roadway cutting through the building itself, sharing the frame with a Tesla Semi and a Cybercab.
Robovan is the boxy, driverless people and cargo mover Musk unveiled alongside Cybercab at Tesla’s “We, Robot” event in October 2024. He pitched it as a way to move up to 20 passengers at once, or handle freight instead, at a target cost he claimed could fall under a dollar a mile, with no steering wheel or pedals, the same layout as Cybercab. Nearly two years later, Robovan still has no confirmed production timeline and has not shown up in any factory footage, which makes Thursday’s render one of the only recent looks at the vehicle in any form.
Terafab Texas will be the largest and most valuable building on Earth by far.
And it will be stunningly beautiful. pic.twitter.com/4NweOqTL7y
— Elon Musk (@elonmusk) August 6, 2026
Optimus has moved further along. Tesla began converting Fremont’s old Model S and Model X assembly line into a Gen 3 Optimus production line earlier this year, and Musk visited the site on July 1 to mark the changeover. A second, larger Optimus plant is under construction at Giga Texas, targeting volume production in summer 2027 and eventual capacity of 10 million units a year. Tesla AI lead Ashok Elluswamy said this month the robot has “big shoes to fill” in replacing the S and X line, while Musk has repeatedly called Optimus the company’s biggest product of any kind, with a long-term price he has pegged between $20,000 and $30,000.
Check out the “Robovan” from @Tesla
📸: @Teslarati pic.twitter.com/D4es2i9NUe
— TESLARATI (@Teslarati) October 11, 2024
“Terafab Texas will be the largest and most valuable building on Earth by far,” Musk wrote alongside the clip. “And it will be stunningly beautiful.”
One quote post summed up the reaction: “Futuristic scene with RoboVan + Cybercab + Tesla Semi + Optimus.”
Beyond the vehicles, the architecture wrapped around them stands out too. The building’s facade is canted at sharp angles, with illuminated horizontal bands running through what appears to be a multi level interior visible from outside. Below the elevated roadway, pedestrians walk along a plaza next to a reflecting pool, and the skyline behind the campus is dotted with angular spires that read more like sculpture than infrastructure, a departure from the strictly utilitarian look of Gigafactory Texas or Starbase.
The timing tracks with what Terafab representative Riley Trennell told Grimes County residents on Wednesday, when he said renderings of the facility would be released “within days.” Musk’s post followed less than 24 hours later, and Texas Governor Greg Abbott’s office sent out its own release Thursday confirming the project. As Teslarati reported this morning, Terafab’s tax abatement agreements with Grimes County are now signed and active, and SpaceX has sent the county its first $10 million payment under that deal. The dollar figure tied to this phase of construction, per Reuters, is $16.8 billion, one of the first hard capital expenditure numbers attached to Terafab since Musk unveiled the joint Tesla-SpaceX-xAI venture in March.Reaction on X ranged from enthusiastic to skeptical. “God Bless Texas! Everything is bigger and better in Texas!” one reply read. Another was more measured: “Terafab in a decade…..”
Whether the finished building matches the render is a separate question from whether Musk wanted people talking about the render itself. Less than a day after posting, the video had already crossed 5.5 million views.










