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Starhopper update: SpaceX’s ungainly Starship testbed survives night of fireballs, Raptor testing

Despite what looked like several decidedly off-nominal fires after an apparently successful Raptor static fire, Starhopper looks unscathed in the morning light. (NASASpaceflight - bocachicagal, 07/17/2019)

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SpaceX’s Starhopper appears to have come out the other end of an eventful night of fires, fireballs, and Raptor testing completely unscathed, although – as with all things rocketry – there is vastly more than meets the eye.

However, signs point towards Starhopper being almost entirely unharmed by its brief voyage inside a fireball – even if Boca Chica’s fire suppression system got a thorough workout and many a SpaceX onlooker likely suffered a partial heart attack. For the time being, it’s safe to assume that Starhopper’s planned flight activities have been indefinitely delayed as SpaceX technicians analyze the vehicle and engineers work to mitigate or completely prevent major fires from recurring.

According to NASASpaceflight.com’s well-informed sources, despite the spectacular fireworks that followed Raptor’s own impressive display, the engine’s static fire test was a full success – at least in terms of data produced by the engine. The large fireball was attributed to the ignition of a large methane vent that followed soon after Raptor’s shutdown.

For now, this means that Starhopper’s untethered flight test and hover test debut should not be expected to occur for several days, even in the event that the rocket, pad, and Raptor engine all made it through their July 16th ordeal completely undamaged. If there is zero damage, this accident will serve as an unfortunate but useful demonstration of a true stainless steel rocket’s theoretically exceptional sturdiness and heat resistance.

It may seem more than a little ironic, but it’s likely less than a coincidence. If it comes to fruition as a truly functional, orbit-capable steel rocket, spaceship, and upper stage, Starship/Super Heavy will exist in their shiny, steel forms almost entirely because of the unintuitive tradeoffs that could theoretically make heat-resistant-but-dense steel more efficient than a ship built out of ultra-light carbon composites. If Starhopper’s newly demonstrated resilience is anything to go by, a very happy side-effect of that efficient, heat-resistant steel could be an almost unprecedented resilience in the face of serious fires, fireballs, and other fire-related anomalies.

https://www.youtube.com/watch?v=heguSQRla-Q

For almost any other rocket, exposure – at least outside of the engine section – to large fireballs and quite literally having parts burning while motionless on the ground are deeply, deeply worrisome things and risk a major vehicle malfunction – potentially up to and including a catastrophic failure (i.e. explosion). ULA’s Delta IV rocket family is famous for self-immolating during ignition and liftoff, a minimal concern to the rockets’ thin, aluminum tankage thanks to several inches of thick, fire-retardant foam insulation.

For a rocket like Falcon 9, almost entirely (by surface area) composed of thin, aluminum propellant tanks and carbon composite structures, there is a constant struggle to balance the vehicle’s extreme performance with the low melting point of its primary structures (~720 degrees C). The 301-series stainless steel Starhopper and Starship(s) are built out of has a melting point of ~1400 degrees C, nearly double aluminum-lithium alloys.

~12 hours later, Starhopper and Raptor SN06 bare no visible scars after pushing through multiple fires and a large fireball on July 16th. (NASASpaceflight – bocachicagal, 07/17/2019)

In short, while it boggles the mind and is decidedly unintuitive to anyone who watched July 16th’s live coverage of the static fire, it’s actually not a huge surprise that Starhopper has suffered serious fire-related anomalies with essentially zero visible damage. In fact, it’s almost impossible to tell that anything at all happened, let alone discerning some subtle sign(s) of damage incurred by fires. It may sound ironic to say so, but rockets and fire just do not tend to like each other much at all.

Time will tell if Starhopper and Raptor are in as good a condition as they appear to be.

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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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Tesla hired over 1,000 factory workers for its Semi program in NV: report

The update was initially reported by Insider, which cited three people reportedly familiar with the matter.

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Credit: Tesla Semi/X

Tesla seems to be putting a lot of effort into growing its Semi team. As per recent reports, the company has hired over 1,000 factory workers in Nevada for its Semi program.

The update was initially reported by Insider, which cited three people reportedly familiar with the matter. 

Bigger Semi Team

As per the publication’s sources, Tesla has reportedly hired over a thousand new factory workers for the Semi program in Nevada. The hiring ramp is reportedly part of the company’s efforts to fulfill the orders for the Semi, which have been accumulating for years.

To help the new members of the Semi team, Tesla has reportedly brought in the new workers to Giga Nevada for training and tours over the past months. These efforts are quite a notable update for the Semi program, the publication’s sources claimed, since less than 100 factory workers were reportedly assigned to the Class 8 all-electric truck until recently.

Tesla has not issued a comment about the matter as of writing.

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Tesla Semi Jobs and Updates

Insider’s report came amidst a hiring ramp in Tesla’s Careers website. As per previous reports, Tesla’s Careers website has uploaded over 80 positions related to the Semi program. The positions are varied, with listings being posted for engineering-related roles in Palo Alto, California, to manufacturing-related roles in Sparks, Nevada, and vehicle service-related roles in Sacramento, California. 

Tesla also shared a recent video of the ongoing progress of the Semi factory’s construction near Giga Nevada. As per Tesla Semi program lead Dan Priestley, the company has spent the last few months building the facility’s shell, so efforts are now underway to equip the factory with production equipment. The Tesla executive also reiterated the company’s target of producing 50,000 units of the Semi annually from its Nevada factory.

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Elon Musk jokes he will join Mr Beast’s “100 Men vs 1 Gorilla” challenge

It’s a good sign, if any, that the overworked Musk is becoming a bit more lighthearted again.

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Credit: Elon Musk/X

Following the first quarter Tesla earnings call, CEO Elon Musk seems to have become a bit more relaxed—relaxed enough to joke about fighting a gorilla with 99 other people, at least.

It’s a good sign, if any, that the overworked Musk is becoming a bit more lighthearted again and not too busy picking fights with politicians on social media.

The Viral 100 Men vs 1 Gorilla Challenge

Over the weekend, a post on social media platform X went viral. The post itself was quite simple, with user @DreamChasnMike stating that he thinks 100 men could beat one gorilla. “Everybody just gotta be dedicated to the sh*t,” the X user joked. The post exploded on the platform, garnering 284 million impressions as of writing.

The silly question also triggered a massive debate about whether 100 men would really stand a chance against a literal gorilla. Some users even lamented that the premise was a sign of male hubris. Nevertheless, the question proved to be a fun topic on X, with some more dedicated users even posting simulated videos of what the “100 Men vs 1 Gorilla Challenge” could look like. 

Mr. Beast and Elon Musk Join In

The premise is quite similar to other viral videos from noted YouTube creator Mr. Beast, so it was no surprise that edited images of Mr. Beast YouTube thumbnails with “100 Men vs a Gorilla” also started spreading on the social media platform. Mr. Beast, who tends to be game to such silly ideas, actually reposted the edited image, joking “Need 100 men to test this, any volunteers?”

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In true Elon Musk fashion, the Tesla and SpaceX CEO noted that he would join the challenge. “Sure, what’s the worst that could happen” Musk wrote in his post on X. Musk’s reply triggered quite a few laughs on X, with some stating that the world probably still needs the CEO.

While silly, Musk’s comment and his recent, more frequent posts about his companies’ products like Starlink and Grok have been received well by his supporters. Over the past months, after all, Musk has been very political and quite confrontational on social media. With Musk soon taking a step back from the Department of Government Efficiency’s (DOGE) daily operations, however, it seems like X will soon get a more tempered and lighthearted Elon Musk once more.

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Big Tesla win? Sec Lutnick says cars with 85% domestic content will face zero tariffs

That’s a big competitive advantage for Tesla’s best-selling vehicle.

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Credit: Tesla Europe & Middle East/X

It appears that Tesla may see itself with a notable advantage in the United States.

This is, at least, as per recent comments from United States Commerce Secretary Howard Lutnick.

Lutnick’s Comments

In recent comments to reporters, Lutnick stated that vehicles finished in the United States with 85% domestic content will have no tariff applied, as noted in a report from The Guardian. Automakers that meet this threshold stand to gain an advantage in the U.S. auto sector, especially considering the Trump administration’s aggressive tariffs.

As per Lutnick, the administration’s auto tariffs will apply to foreign carmakers that are building their vehicles in the United States. “This is ‘finish your cars in America and you win’,” Lutnick stated.

Big Tesla Advantage

Lutnick’s comments were received positively by Tesla watchers on social media, many of whom noted that the threshold would probably be met only by the electric vehicle maker’s cars. Teslas that are sold in the United States are built in the United States, and they have consistently ranked among the most American cars in the country for several years running.

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Back in December, for example, American University’s Kogod School of Business released its Made in America Auto Index, which explores the total domestic content of vehicles that are available for purchase today. In its rankings, only three vehicles received a total domestic content score of 85% or higher—the Tesla Model Y, Model Y Long Range, and the Model 3 Performance.

The two Model Y variants received a total domestic content score of 85%, while the Model 3 Performance had a total domestic content of 87.5%. If Secretary Lutnick’s comments are any indication, these three vehicles would be subjected to zero tariffs. This bodes well for Tesla, as the Model Y is the company’s best-selling vehicle by a notable margin.

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