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The Tesla Semi’s recent Giga 1 sighting highlights its difference from other concept trucks
To say that the Tesla Semi ruffled some feathers when it was unveiled last year is an understatement. Prior to the reveal of all-electric truck, questions were abounding about its viability as an alternative to conventional diesel-powered long-haulers. Even after the Semi’s specs and performance were announced, the vehicle still attracted a lot of skepticism.
During an event for Daimler’s e-Actos electric truck, for example, the company’s Head of Trucks, Martin Daum, noted that Elon Musk’s claims about the Semi’s 300 and 500-mile range are farfetched. Citing limitations in battery tech, Daum stated that “If Tesla really delivers on this promise, we’ll obviously buy two trucks — one to take apart and one to test because if that happens, something has passed us by. But for now, the same laws of physics apply in Germany and in California.” Jon Mills, a spokesman for engine maker Cummins Inc. noted back in August that while electrification is in the future of the trucking industry, the vehicles are not viable in their current state.
Since it was unveiled, the Tesla Semi has been spotted traveling across the United States. Tesla unveiled two working prototypes of the Semi – one painted silver and the other matte black – when it unveiled the vehicle, and so far, both have been spotted testing on US roads. Both trucks were also sighted delivering cargo from Gigafactory 1 in NV to the Fremont factory in CA. Most recently, the silver Tesla Semi was sighted in Gigafactory 1, hauling a trailer and seemingly ready to transport cargo.
Tesla is not the only manufacturer coming up with a zero-emissions truck. As the transport industry starts accelerating its shift towards electrification, even prominent truck companies are coming up with their own green vehicles. Most of these vehicles exist as concepts for now, but they do give an idea of how veteran truckmakers are approaching the industry’s transition to the electric age.
Ford, for one, recently revealed the F-Vision concept, which is loaded to the teeth with cutting-edge tech, including an adaptable windshield that can lower and rise depending on the driver’s preference, as well as front lights that can be fully customized. Last month, Volvo introduced the Vera, its next-generation semi-trailer concept. Unlike Tesla and Ford’s truck, Volvo’s vehicle does not even have a driver’s cabin, as it is designed fully for autonomy. Startup trucking companies are also showcasing their offerings. Nikola Motors, for one, made headlines when it unveiled its long-range sleeper hydrogen-electric truck – the Nikola One – back in December 2016, and the company has since teased its next offering, a day cab called the Nikola Two.
There is little doubt that the upcoming electric truck concepts that have been unveiled so far are exciting vehicles in their own right. Inasmuch as this is the case, though, many of these impressive concepts feature technology that is still yet to be developed or refined. During the F-Vision’s unveiling, for one, Ford clarified that the truck is strictly a concept for now. Volvo’s Vera is a perfect fit for short-haul trips thanks to its 300 kWh battery that gives it a 187-mile range, but the vehicle can’t be deployed anytime soon since self-driving tech is still under development (even autonomous tech leader Waymo is reportedly struggling with its fleet’s real-world testing). Nikola’s hydrogen-electric trucks are powerful and boast long-range, but they would need a network of H2 refilling stations before they can be a viable alternative to diesel trucks. As a result, most zero-emissions truck concepts, including the Nikola One prototype, are yet to be sighted doing real-world tests on public roads.
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- The Volvo Vera. [Credit: Volvo]
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- The Ford F-Vision concept. [Credit: Ford]
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- The Nikola One
This is where the Tesla Semi is different. Among the upcoming electric trucks in the market, the Semi is the one undergoing consistent, intensive real-world testing. The vehicle has been spotted in multiple states since its unveiling, at times even visiting the sites of reservation holders like UPS, J.B. Hunt and PepsiCo. As it conducts its extensive real-world tests, the vehicle undergoes a consistent process of improvement. This was highlighted by Tesla’s Head of Automotive Jerome Guillen during the Q2 2018 earnings call, when he stated that several improvements have already been introduced to the electric truck since it was unveiled last year. Elon Musk even teased on Twitter that the Semi would likely have closer to 600 miles of range per charge. With this, it seems safe to infer that the production version of the Tesla Semi would be better than the prototype that is currently traveling across the country today.
The Tesla Semi balances its features without overdoing it as well. It does not have the cloud-based autonomy of concepts like the Vera or the flashy variable front design of the Ford F-Vision, but ultimately, it does not need to have all these extra bells and whistles to become effective at what it’s designed to do. Tesla created the Semi to be a viable alternative to diesel-powered long-haulers, and if recent sightings and its consistent road tests is any indication, it appears that the vehicle is poised to be exactly that.
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The Tesla Semi is expected to start production sometime in 2019. Recent reports have indicated that Tesla is planning on “earnestly” producing the Semi sometime in 2020.
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Elon Musk has declared that SpaceX has effectively solved one of Starship’s most persistent engineering challenges: the reliability of its heat shield tiles.
During the company’s first-ever Earnings Call, the SpaceX CEO stated:
“I don’t want to jinx it or anything, but I think I would call the heat shield problem solved at this point. All indications from data and visual inspection is we have solved it. That doesn’t mean we won’t make improvements, but we do not see any technical obstacles to achieving rapid reusability at this point.”
Starship’s heat shield consists of roughly 18,000 hexagonal ceramic tiles covering the windward side of the upper stage. These tiles form the thermal protection system that shields the vehicle’s stainless-steel structure from the extreme heat of atmospheric reentry.
Elon says he believes the heat shield problem with Starship is currently solved.
He called it “arguably the single biggest problem” pic.twitter.com/eEE9vM5zlz
— TESLARATI (@Teslarati) August 4, 2026
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During descent, atmospheric friction generates temperatures exceeding several thousand degrees Celsius and creates plasma flows capable of melting unprotected metal. The tiles absorb, radiate, and insulate against this energy, allowing the vehicle to survive and potentially fly again. Without a durable heat shield, full and rapid reusability, the cornerstone of Starship’s design for frequent launches, satellite deployments, and deep-space missions, would remain impossible.
The tiles have long been a source of difficulty. On earlier test flights, a significant number of tiles detached during ascent due to vibration, aerodynamic loads, and imperfect attachment methods using pins and adhesives. Gaps between tiles allowed hot plasma to infiltrate, causing secondary damage and hot spots on the underlying structure.
These issues echoed challenges faced by NASA’s Space Shuttle, whose ceramic tiles required extensive, labor-intensive inspections and replacements between missions, preventing rapid turnaround. SpaceX has iteratively improved materials, standardized tile shapes, refined attachment techniques, added secondary ablative layers, and tested sealing methods such as “crunch wrap” felt to close gaps.
Progress was visible across Flights 10–12, with steadily better tile retention, yet questions remained about whether the system could support the minimal-refurbishment goal of rapid reuse.
Flight 13 on July 24 provided the decisive evidence. Ship 40 flew a deliberately more demanding profile with higher dynamic pressure to stress the heat shield beyond typical operational loads. It successfully deployed 20 operational Starlink V3 satellites, the first such payload on a Starship mission, performed an in-space Raptor engine relight, and executed a controlled reentry.
Elon Musk sheds two new bits of detail on Starship after 13th test launch
Cameras on six of the satellites and onboard sensors captured extensive imagery and data of the shield throughout the flight. The ship then achieved its softest splashdown to date in the Indian Ocean, remaining intact and floating rather than breaking apart or exploding as on prior missions. This allowed drone inspections and continuous telemetry of the heat shield in near-real time.
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Post-flight analysis showed the majority of tiles remaining attached with only minor damage and limited plasma streaking at seams. Musk noted that the mission delivered “all the heat shield data we needed and then some.” Combined with visual inspections, these results underpinned his subsequent assessment that the core technical barriers to rapid reusability have been cleared. While refinements will continue, Flight 13 marked a pivotal step toward Starship’s operational future.
SpaceX COO Gwynne Shotwell outlined ambitious plans for Starlink Mobile during the company’s August 4 Earnings call, signaling a direct challenge to U.S. wireless giants like AT&T, T-Mobile, and Verizon.
Shotwell noted that the three companies generate roughly $600 billion in combined annual revenue. “I anticipate us to be able to acquire quite a few of their customers because I think our service will be better,” she said. “We will eliminate dead zones leveraging the satellites in orbit. It will be better during any natural disaster… I’m quite excited about Starlink Mobile.”
SpaceX President & COO Gwynne Shotwell on @Starlink Mobile and its impact on Verizon, AT&T and T-Mobile:
“Roughly, between them, $600 billion a year. I anticipate us to be able to acquire quite a few of their customers. Our service will be better. We will eliminate dead zones… pic.twitter.com/UYZUkrGc0L
— Sawyer Merritt (@SawyerMerritt) August 4, 2026
SpaceX intends to combine its satellite constellation with terrestrial infrastructure. The company has acquired about 65 MHz of spectrum from EchoStar and plans to deploy next-generation Starlink Mobile satellites in 2027, with upgraded service targeted for the end of that year.
Shotwell described the enhanced network, leveraging more satellites and spectrum, as potentially “100 times better” than the current direct-to-cell offering, which already supports basic texting and app-based voice/video in coverage gaps through partnerships. She also indicated plans for low-cost cellular base stations that could integrate with existing Starlink dishes, creating a hybrid system for broader capacity in urban, suburban, and rural areas.
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For the general public, Starlink Mobile promises significant advantages. Satellite connectivity can fill gaps where traditional cell towers fail, delivering service in remote locations, mountains, or during outages caused by storms, wildfires, or infrastructure damage—conditions in which ground networks often collapse.
Users could enjoy more consistent coverage without relying solely on dense tower builds, potentially at competitive prices as SpaceX scales. The hybrid approach aims to support full mobile services, including higher-speed data, while working with unmodified smartphones over time.
These developments revive long-standing but unfounded rumors of a Musk-developed “Tesla phone.” Speculative claims of a “Pi Phone” or similar device with built-in Starlink connectivity have circulated for years on social media, often featuring fabricated images and details. Elon Musk has repeatedly denied any such plans, stating Tesla has no intention of entering the smartphone market unless forced by extreme circumstances with app stores.
No official product, filings, or development announcements have ever materialized; the rumors remain hoaxes.
The announcement quickly pressured telecom stocks. Shares of AT&T, Verizon, and T-Mobile fell between roughly 2 and 4 percent in after-hours and premarket trading as investors weighed the competitive threat from a hybrid satellite-terrestrial network.
While execution challenges remain—spectrum deployment, infrastructure rollout, and regulatory hurdles—Shotwell’s remarks mark SpaceX’s clearest signal yet of entering the consumer mobile market as a full competitor.
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Venture capitalist Chamath Palihapitiya has cautioned investors shorting SpaceX shares, drawing a direct parallel to the intense short-selling pressure Tesla faced in its early public years.
Responding to reports of elevated short interest in the newly public rocket, satellite, and AI company, Palihapitiya noted that similar dynamics played out with Tesla, where aggressive short sellers ultimately “went broke.”
SpaceX (NASDAQ: SPCX) went public on June 12, 2026, in the largest IPO on record, pricing at $135 per share. Shares quickly surged to an all-time high of $225.64 just days later, briefly implying a valuation exceeding $2 trillion. The stock has since retreated sharply amid valuation concerns, lockup expiration fears, and broader market dynamics.
By early August, it traded near $108–$125, representing a roughly 50 percent decline from the peak and bringing the market capitalization closer to the $1.5–1.7 trillion range. On August 4, shares closed up more than 9 percent at $125.33 ahead of earnings before facing pressure in after-hours and premarket trading.
Short interest has climbed dramatically. According to S3 Partners data widely cited in market reports, short positions reached approximately 219.3 million shares by late July, about 34 percent of the limited public float of roughly 640 million shares, and represented a notional value of around $24.6 billion.
Utilization of shares available to borrow hit 95 percent, with borrow fees rising. This level of shorting exceeded the dollar value of short bets against Tesla at the time and built rapidly ahead of two catalysts: the company’s first post-IPO earnings and an August 6 lockup expiration that could free up to 911.5 million additional shares.
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CEO Elon Musk has issued warnings of his own. In mid-July, as short interest approached one-third of the float, he posted that “the survival probability of firms who maintain a significant short position in SpaceX over time is very low,” reiterating his view that the company could ultimately be worth more than Earth if it achieves its goals.
On August 4, just before earnings, Musk responded to the latest short-interest data by saying, “I try to warn them, but they just double down.”
SpaceX delivered its first quarterly results as a public company after the close on August 4. Second-quarter revenue rose 92 percent year-over-year to $7.8 billion, beating consensus estimates near $6.8–6.9 billion.
The net loss narrowed to $541 million, or 9 cents per share, better than the roughly 23–24 cent loss expected. Starlink/connectivity contributed about $4.3 billion (up 66 percent), while the AI business generated $2.6 billion (up roughly 250 percent). Capital expenditures were heavy at $18.4 billion, largely tied to AI infrastructure. Management projected a $100 billion annualized revenue run rate by year-end 2026 and outlined a path toward $1 trillion in annual revenue by 2030.
The combination of Chamath’s historical reminder, Musk’s repeated alerts, and the company’s ambitious growth targets underscores the high-stakes debate surrounding SPCX. Short sellers are positioned for near-term supply pressure from the lockup, while long-term bulls point to Starlink scale, Starship progress, and AI compute expansion as reasons the bears may ultimately face the same fate as many early Tesla skeptics.
SpaceX has solved Starship’s biggest challenge, Elon Musk says
SpaceX is coming for wireless giants with Starlink Mobile
